27,017
Port 27017 is the default port for MongoDB.
- Odd
- Prime
Where 27,017 fits
Why 27,017 is special
Exposed MongoDB instances on 27017 produced a wave of publicised data breaches in the mid-2010s, largely because early defaults bound to all network interfaces without authentication. The database changed its defaults in response, which is one of the clearer cases of a breach pattern changing a product.
27,017 is part of
Factors & digit properties
- Divisors (2)
- 1, 27017
- Prime factorisation
- 27017
- Digit sum
- 17
- Digital root
- 8
Representations
- Decimal
- 27017
- Scientific notation
- 2.702 × 10^4
Roman numerals
Roman numerals as modelled here goes up to 3,999.
Binary
1 1 0 1 0 0 1 1 0 0 0 1 0 0 1
1 × 16,384 + 1 × 8,192 + 0 × 4,096 + 1 × 2,048 + 0 × 1,024 + 0 × 512 + 1 × 256 + 1 × 128 + 0 × 64 + 0 × 32 + 0 × 16 + 1 × 8 + 0 × 4 + 0 × 2 + 1 × 1 = 27,017
Octal
6 4 6 1 1
6 × 4,096 + 4 × 512 + 6 × 64 + 1 × 8 + 1 × 1 = 27,017
Hexadecimal
6 9 8 9
6 × 4,096 + 9 × 256 + 8 × 16 + 9 × 1 = 27,017
Read as powers of two: 16,384 + 8,192 + 2,048 + 256 + 128 + 8 + 1 = 27,017.
In historical numeral systems
Egyptian
2 fingers, 7 lotuses, 1 hobble, 7 strokes
2 × 10,000 + 7 × 1,000 + 1 × 10 + 7 × 1 = 27,017. 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
- Happy number
Related numbers & connections
One covers cloud security controls and the other personal data in the cloud, both extending ISO/IEC 27002.
View 27018 →Technology & computing
ISO/IEC 27017 gives cloud-specific guidance alongside ISO/IEC 27002, including the division of responsibility between provider and customer that shared infrastructure creates.
DocumentedTechnology & computingGeography: International — ISO member bodiesPeriod: 2015–Publicised MongoDB data exposures in the mid-2010s came largely from early defaults that listened on every network interface without authentication. The project changed those defaults in response, making it one of the clearer cases of a breach pattern altering a product.
DocumentedTechnology & computing
Common questions
Is 27,017 a prime number?
Yes, 27,017 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 27,017?
The factors of 27,017 are 1, 27017.
About this page's data
Mathematical facts:computed directly from the number's value — nothing to source or verify externally.
Contextual records: 2 reviewer-confirmed records, sourced and reviewed before publication.
Last reviewed: 15 July 2026