624670964 has 6 divisors (see below), whose sum is σ = 1093174194. Its totient is φ = 312335480.

The previous prime is 624670939. The next prime is 624670997. The reversal of 624670964 is 469076426.

It can be written as a sum of positive squares in only one way, i.e., 487968100 + 136702864 = 22090^2 + 11692^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78083867 + ... + 78083874.

It is an arithmetic number, because the mean of its divisors is an integer number (182195699).

Almost surely, 2^624670964 is an apocalyptic number.

It is an amenable number.

624670964 is a deficient number, since it is larger than the sum of its proper divisors (468503230).

624670964 is a wasteful number, since it uses less digits than its factorization.

624670964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156167745 (or 156167743 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 44.

The square root of 624670964 is about 24993.4184136544. The cubic root of 624670964 is about 854.8379086956.

The spelling of 624670964 in words is "six hundred twenty-four million, six hundred seventy thousand, nine hundred sixty-four".