634786072 has 16 divisors (see below), whose sum is σ = 1190703600. Its totient is φ = 317265120.

The previous prime is 634786037. The next prime is 634786091. The reversal of 634786072 is 270687436.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7054 + ... + 36322.

It is an arithmetic number, because the mean of its divisors is an integer number (74418975).

Almost surely, 2^634786072 is an apocalyptic number.

It is an amenable number.

634786072 is a deficient number, since it is larger than the sum of its proper divisors (555917528).

634786072 is a wasteful number, since it uses less digits than its factorization.

634786072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31986 (or 31982 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 43.

The square root of 634786072 is about 25194.9612422802. The cubic root of 634786072 is about 859.4272696485.

The spelling of 634786072 in words is "six hundred thirty-four million, seven hundred eighty-six thousand, seventy-two".