634928672 has 48 divisors (see below), whose sum is σ = 1457769600. Its totient is φ = 272107584.

The previous prime is 634928663. The next prime is 634928683. The reversal of 634928672 is 276829436.

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 in 7 ways as a sum of consecutive naturals, for example, 17948 + ... + 39899.

It is an arithmetic number, because the mean of its divisors is an integer number (30370200).

Almost surely, 2^634928672 is an apocalyptic number.

It is an amenable number.

634928672 is an abundant number, since it is smaller than the sum of its proper divisors (822840928).

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

634928672 is an equidigital number, since it uses as much as digits as its factorization.

634928672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57878 (or 57856 counting only the distinct ones).

The product of its digits is 870912, while the sum is 47.

The square root of 634928672 is about 25197.7910142933. The cubic root of 634928672 is about 859.4916194918.

The spelling of 634928672 in words is "six hundred thirty-four million, nine hundred twenty-eight thousand, six hundred seventy-two".