37
37 is a prime number, the atomic number of rubidium, and the traditional reference figure (in Celsius) for normal human body temperature.
- Odd
- Prime
Where 37 fits
Why 37 is special
37°C's familiarity as 'normal' body temperature obscures how much real individual variation is actually healthy.
Same number, different meanings
How 37 is understood across different contexts — never implying one meaning because of another.
- Mathematics
37°C's familiarity as 'normal' body temperature obscures how much real individual variation is actually healthy.
- Science
37 is the atomic number of rubidium.
- Everyday life
37°C (98.6°F) is the traditional reference figure for normal human body temperature, though real individual variation of roughly half a degree either way is normal and healthy.
37 is part of
Factors & digit properties
- Divisors (2)
- 1, 37
- Prime factorisation
- 37
- Digit sum
- 10
- Digital root
- 1
Representations
- Decimal
- 37
- Binary
- 100101
- Octal
- 45
- Hexadecimal
- 25
- Roman numeral
- XXXVII
- Scientific notation
- 3.700 × 10^1
Other mathematical patterns
- Deficient number
- Lucky number (mathematical sieve)
Related numbers & connections
37 is a factor of 74 (37 × 2 = 74).
View 74 →Mathematically related
- is a factor of74
why?
Strength 0.50, confidence "high".
Science
37 is the atomic number of rubidium.
DocumentedScience
Everyday life
37°C (98.6°F) is the traditional reference figure for normal human body temperature, though real individual variation of roughly half a degree either way is normal and healthy.
Widely documentedEveryday life
Common questions
Is 37 a prime number?
Yes, 37 is prime — it has exactly two positive divisors: 1 and itself.
What are the factors of 37?
The factors of 37 are 1, 37.
What is 37 in Roman numerals?
37 in Roman numerals is XXXVII.
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