634736992 has 12 divisors (see below), whose sum is σ = 1249638516. Its totient is φ = 317368480.

The previous prime is 634736989. The next prime is 634737001. The reversal of 634736992 is 299637436.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9917734 + ... + 9917797.

It is an arithmetic number, because the mean of its divisors is an integer number (104136543).

Almost surely, 2^634736992 is an apocalyptic number.

It is an amenable number.

634736992 is a deficient number, since it is larger than the sum of its proper divisors (614901524).

634736992 is a wasteful number, since it uses less digits than its factorization.

634736992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19835541 (or 19835533 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 49.

The square root of 634736992 is about 25193.9872191759. The cubic root of 634736992 is about 859.4051195209.

The spelling of 634736992 in words is "six hundred thirty-four million, seven hundred thirty-six thousand, nine hundred ninety-two".