630804 has 12 divisors (see below), whose sum is σ = 1471904. Its totient is φ = 210264.

The previous prime is 630803. The next prime is 630823. The reversal of 630804 is 408036.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26272 + ... + 26295.

2⁶³⁰⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

630804 is an abundant number, since it is smaller than the sum of its proper divisors (841100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

630804 is a wasteful number, since it uses less digits than its factorization.

630804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52574 (or 52572 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 630804 is about 794.2317042274. The cubic root of 630804 is about 85.7626409695.

The spelling of 630804 in words is "six hundred thirty thousand, eight hundred four".