634892804 has 72 divisors (see below), whose sum is σ = 1413034560. Its totient is φ = 247351104.

The previous prime is 634892789. The next prime is 634892827. The reversal of 634892804 is 408298436.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 168857 + ... + 172575.

It is an arithmetic number, because the mean of its divisors is an integer number (19625480).

Almost surely, 2^634892804 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 634892804, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (706517280).

634892804 is an abundant number, since it is smaller than the sum of its proper divisors (778141756).

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

634892804 is a wasteful number, since it uses less digits than its factorization.

634892804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3817 (or 3808 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 44.

The square root of 634892804 is about 25197.0792751858. The cubic root of 634892804 is about 859.4754345631.

The spelling of 634892804 in words is "six hundred thirty-four million, eight hundred ninety-two thousand, eight hundred four".