647952974 has 16 divisors (see below), whose sum is σ = 1006164720. Its totient is φ = 312580800.

The previous prime is 647952967. The next prime is 647953001. The reversal of 647952974 is 479259746.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101357 + ... + 107559.

It is an arithmetic number, because the mean of its divisors is an integer number (62885295).

Almost surely, 2^647952974 is an apocalyptic number.

647952974 is a deficient number, since it is larger than the sum of its proper divisors (358211746).

647952974 is a wasteful number, since it uses less digits than its factorization.

647952974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8035.

The product of its digits is 3810240, while the sum is 53.

The square root of 647952974 is about 25454.9204280823. The cubic root of 647952974 is about 865.3288085829.

The spelling of 647952974 in words is "six hundred forty-seven million, nine hundred fifty-two thousand, nine hundred seventy-four".