647125292 has 12 divisors (see below), whose sum is σ = 1235421096. Its totient is φ = 294147840.

The previous prime is 647125289. The next prime is 647125331. The reversal of 647125292 is 292521746.

It is a super-2 number, since 2×647125292² = 837542287092170528, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 7353653 + ... + 7353740.

It is an arithmetic number, because the mean of its divisors is an integer number (102951758).

Almost surely, 2^647125292 is an apocalyptic number.

It is an amenable number.

647125292 is a deficient number, since it is larger than the sum of its proper divisors (588295804).

647125292 is a wasteful number, since it uses less digits than its factorization.

647125292 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14707408 (or 14707406 counting only the distinct ones).

The product of its digits is 60480, while the sum is 38.

The square root of 647125292 is about 25438.6574331272. The cubic root of 647125292 is about 864.9602004253.

The spelling of 647125292 in words is "six hundred forty-seven million, one hundred twenty-five thousand, two hundred ninety-two".