8489
RFC 8489 is the current STUN specification.
- Odd
- Composite
Where 8489 fits
Why 8489 is special
It adds password algorithms and stronger message integrity, reflecting that a discovery protocol became a security-relevant one.
Factors & digit properties
- Divisors (4)
- 1, 13, 653, 8489
- Prime factorisation
- 13 × 653
- Digit sum
- 29
- Digital root
- 2
Representations
- Decimal
- 8489
- Scientific notation
- 8.489 × 10^3
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 0 0 0 0 1 0 0 1 0 1 0 0 1
1 × 8,192 + 0 × 4,096 + 0 × 2,048 + 0 × 1,024 + 0 × 512 + 1 × 256 + 0 × 128 + 0 × 64 + 1 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 8,489
Octal
2 0 4 5 1
2 × 4,096 + 0 × 512 + 4 × 64 + 5 × 8 + 1 × 1 = 8,489
Hexadecimal
2 1 2 9
2 × 4,096 + 1 × 256 + 2 × 16 + 9 × 1 = 8,489
Read as powers of two: 8,192 + 256 + 32 + 8 + 1 = 8,489.
In historical numeral systems
Egyptian
8 lotuses, 4 coils of rope, 8 hobbles, 9 strokes
8 × 1,000 + 4 × 100 + 8 × 10 + 9 × 1 = 8,489. The signs are simply repeated and added; where they sit on the line is a matter of layout, not value.
Systems that simply cannot reach this value are left out. Where a script needs a font most readers do not have, the reading is given instead of the glyphs — see number systems for each system in full.
Other mathematical patterns
- Deficient number
- Semiprime
Related numbers & connections
RFC 8489 updated STUN with stronger message integrity as a discovery protocol became security relevant.
View 5389 →Technology & computing
RFC 8489 obsoletes RFC 5389, updating STUN with SHA-256 message integrity, password algorithm negotiation and clarified backwards compatibility.
DocumentedTechnology & computingGeography: International — IETFPeriod: 2020
Common questions
Is 8489 a prime number?
No, 8489 is not prime.
What are the factors of 8489?
The factors of 8489 are 1, 13, 653, 8489.
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: 15 July 2026