634625 has 8 divisors (see below), whose sum is σ = 792168. Its totient is φ = 507600.

The previous prime is 634609. The next prime is 634643. The reversal of 634625 is 526436.

It can be written as a sum of positive squares in 4 ways, for example, as 5776 + 628849 = 76^2 + 793^2 .

It is not a de Polignac number, because 634625 - 2⁴ = 634609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 634594 and 634603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2414 + ... + 2663.

It is an arithmetic number, because the mean of its divisors is an integer number (99021).

2⁶³⁴⁶²⁵ is an apocalyptic number.

It is an amenable number.

634625 is a deficient number, since it is larger than the sum of its proper divisors (157543).

634625 is an equidigital number, since it uses as much as digits as its factorization.

634625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5092 (or 5082 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 634625 is about 796.6335418497. The cubic root of 634625 is about 85.9354572517.

The spelling of 634625 in words is "six hundred thirty-four thousand, six hundred twenty-five".