6624664 has 16 divisors (see below), whose sum is σ = 12448800. Its totient is φ = 3304992.

The previous prime is 6624659. The next prime is 6624671. The reversal of 6624664 is 4664266.

It is a super-2 number, since 2×6624664² = 87772346225792, which contains 22 as substring.

It is an Ulam number.

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, 5857 + ... + 6895.

It is an arithmetic number, because the mean of its divisors is an integer number (778050).

Almost surely, 2^6624664 is an apocalyptic number.

It is an amenable number.

6624664 is a deficient number, since it is larger than the sum of its proper divisors (5824136).

6624664 is a wasteful number, since it uses less digits than its factorization.

6624664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1842 (or 1838 counting only the distinct ones).

The product of its digits is 41472, while the sum is 34.

The square root of 6624664 is about 2573.8422640092. The cubic root of 6624664 is about 187.8111125328.

The spelling of 6624664 in words is "six million, six hundred twenty-four thousand, six hundred sixty-four".