634667604 has 24 divisors (see below), whose sum is σ = 1484420448. Its totient is φ = 211051680.

The previous prime is 634667603. The next prime is 634667609. The reversal of 634667604 is 406766436.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (634667603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57762 + ... + 67865.

It is an arithmetic number, because the mean of its divisors is an integer number (61850852).

Almost surely, 2^634667604 is an apocalyptic number.

It is an amenable number.

634667604 is an abundant number, since it is smaller than the sum of its proper divisors (849752844).

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

634667604 is a wasteful number, since it uses less digits than its factorization.

634667604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126055 (or 126053 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 42.

The square root of 634667604 is about 25192.6101069341. The cubic root of 634667604 is about 859.3738023106.

The spelling of 634667604 in words is "six hundred thirty-four million, six hundred sixty-seven thousand, six hundred four".