634604 has 12 divisors (see below), whose sum is σ = 1129800. Its totient is φ = 311808.

The previous prime is 634603. The next prime is 634609. The reversal of 634604 is 406436.

It is a self number, because there is not a number n which added to its sum of digits gives 634604.

It is not an unprimeable number, because it can be changed into a prime (634603) 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, 1109 + ... + 1580.

It is an arithmetic number, because the mean of its divisors is an integer number (94150).

2⁶³⁴⁶⁰⁴ is an apocalyptic number.

It is an amenable number.

634604 is a deficient number, since it is larger than the sum of its proper divisors (495196).

634604 is a wasteful number, since it uses less digits than its factorization.

634604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752 (or 2750 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 634604 is about 796.6203612763. The cubic root of 634604 is about 85.9345093615.

The spelling of 634604 in words is "six hundred thirty-four thousand, six hundred four".