3664624 has 20 divisors (see below), whose sum is σ = 7137936. Its totient is φ = 1822592.

The previous prime is 3664561. The next prime is 3664631. The reversal of 3664624 is 4264663.

It is a super-2 number, since 2×3664624² = 26858938122752, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3237 + ... + 4219.

Almost surely, 2^3664624 is an apocalyptic number.

It is an amenable number.

3664624 is a deficient number, since it is larger than the sum of its proper divisors (3473312).

3664624 is a wasteful number, since it uses less digits than its factorization.

3664624 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1224 (or 1218 counting only the distinct ones).

The product of its digits is 20736, while the sum is 31.

The square root of 3664624 is about 1914.3207672697. The cubic root of 3664624 is about 154.1735267786.

The spelling of 3664624 in words is "three million, six hundred sixty-four thousand, six hundred twenty-four".