634804 has 12 divisors (see below), whose sum is σ = 1119328. Its totient is φ = 315000.

The previous prime is 634793. The next prime is 634807. The reversal of 634804 is 408436.

It is a super-2 number, since 2×634804² = 805952236832, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634807) 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, 79 + ... + 1129.

2⁶³⁴⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

634804 is a deficient number, since it is larger than the sum of its proper divisors (484524).

634804 is a wasteful number, since it uses less digits than its factorization.

634804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1206 (or 1204 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

The square root of 634804 is about 796.7458816963. The cubic root of 634804 is about 85.9435360388.

The spelling of 634804 in words is "six hundred thirty-four thousand, eight hundred four".