664324924 has 24 divisors (see below), whose sum is σ = 1211338800. Its totient is φ = 318393600.

The previous prime is 664324909. The next prime is 664324937. The reversal of 664324924 is 429423466.

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, 4477 + ... + 36724.

It is an arithmetic number, because the mean of its divisors is an integer number (50472450).

Almost surely, 2^664324924 is an apocalyptic number.

It is an amenable number.

664324924 is a deficient number, since it is larger than the sum of its proper divisors (547013876).

664324924 is a wasteful number, since it uses less digits than its factorization.

664324924 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41373 (or 41371 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The square root of 664324924 is about 25774.5014306776. The cubic root of 664324924 is about 872.5564144441.

The spelling of 664324924 in words is "six hundred sixty-four million, three hundred twenty-four thousand, nine hundred twenty-four".