630625 has 10 divisors (see below), whose sum is σ = 788810. Its totient is φ = 504000.

The previous prime is 630613. The next prime is 630659. The reversal of 630625 is 526036.

It can be written as a sum of positive squares in 5 ways, for example, as 309136 + 321489 = 556^2 + 567^2 .

It is not a de Polignac number, because 630625 - 2⁵ = 630593 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630596 and 630605.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 121 + ... + 1129.

It is an arithmetic number, because the mean of its divisors is an integer number (78881).

2⁶³⁰⁶²⁵ is an apocalyptic number.

It is an amenable number.

630625 is a deficient number, since it is larger than the sum of its proper divisors (158185).

630625 is an equidigital number, since it uses as much as digits as its factorization.

630625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1029 (or 1014 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 630625 is about 794.1190087134. The cubic root of 630625 is about 85.7545280612.

The spelling of 630625 in words is "six hundred thirty thousand, six hundred twenty-five".