Numberwise

3927

RFC 3927 defines IPv4 link-local addressing.

1 confirmed record · 1 sourceChecked, general knowledgeHow we qualify claimsReport a correction

Where 3927 fits

Where 3927 fits: Mathematics, Technology, Related numbersMathematics: Harshad (Niven) number. Technology: Numbers that make the internet work. Related numbers: 2131, 8375.MathematicsHarshad (Niven) numberTechnologyNumbers that make the inter…Related numbers213183753927
3927 connects to 3 worlds: mathematics, technology, related numbers.

Why 3927 is special

It is why a computer that fails to reach a DHCP server still gets an address beginning 169.254, and can still talk to others on the same wire.

3927 is part of

Internet and web numbersNumbers around us

Factors & digit properties

Divisors (16)
1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927
Prime factorisation
3 × 7 × 11 × 17
Digit sum
21
Digital root
3

Representations

Decimal
3927
Binary
111101010111
Octal
7527
Hexadecimal
f57
Roman numeral
MMMCMXXVII
Scientific notation
3.927 × 10^3

Other mathematical patterns

  • Deficient number
  • Harshad (Niven) number

Related numbers & connections

Documented appearance
Link-local addressing is what a machine falls back to when no configuration server answers.

Link-local addressing is what a machine falls back to when no configuration server answers.

Connection
Link-local addressing is what happens when DHCP does not answer, so the two mechanisms cover opposite outcomes of the same boot sequence.

Link-local addressing is what happens when DHCP does not answer, so the two mechanisms cover opposite outcomes of the same boot sequence.

View 2131 →

Numbers Around Us

  • appears inNumbers that make the internet work
    why?

    Strength 0.50, confidence "high".

Other connections

  • contrasts with2131
    why?

    Strength 0.50, confidence "high".

  • is associated with8375
    why?

    Strength 0.50, confidence "high".

How is 3927 connected to another number? →

Technology & computing

  • RFC 3927 specifies dynamic configuration of IPv4 link-local addresses in 169.254.0.0/16, chosen at random and defended by ARP probing, for networks with no configuration server.

    DocumentedTechnology & computingGeography: International — IETFPeriod: 2005

Common questions

Is 3927 a prime number?

No, 3927 is not prime.

What are the factors of 3927?

The factors of 3927 are 1, 3, 7, 11, 17, 21, 33, 51, 77, 119, 187, 231, 357, 561, 1309, 3927.

What is 3927 in Roman numerals?

3927 in Roman numerals is MMMCMXXVII.

About this page's data

Mathematical facts:computed directly from the number's value — nothing to source or verify externally.

Contextual records: 1 reviewer-confirmed record, sourced and reviewed before publication.

Last reviewed: 3 August 2026