689

Properties by base:

More about this number at Positiv Integers and Number Empire.

The number is not a prime.

Its 2 (2 unique) factors are:
13
53

Its 4 divisors are:
1
13
53
689
Its aliquote sum is:
67
makeing it a deficient number.

As Unicode codepoint (since version 1.1) this number represents this character:ʱ MODIFIER LETTER SMALL H WITH HOOK in Spacing Modifier Letters (Source: https://unicode-api.aaronluna.dev/v1/codepoints/2b1?show_props=Basic); HTML: ʱ

The number appears at position 691 of the decimal digits of π surrounded by
4654958537105079227968925892354201995611212 Source: The Pi-Search Page

Computations done with Math::BigInt 1.999811 and Math::Pari 2.030523 based on PARI/GP 2.11.3 (elapsed: 1489.253ms; cpu: 80.0140000000003ms)