6630864 has 20 divisors (see below), whose sum is σ = 17129856. Its totient is φ = 2210272.

The previous prime is 6630859. The next prime is 6630887. The reversal of 6630864 is 4680366.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69024 + ... + 69119.

Almost surely, 2^6630864 is an apocalyptic number.

It is an amenable number.

6630864 is an abundant number, since it is smaller than the sum of its proper divisors (10498992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6630864 is a wasteful number, since it uses less digits than its factorization.

6630864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138154 (or 138148 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 33.

The square root of 6630864 is about 2575.0464073488. The cubic root of 6630864 is about 187.8696848531.

The spelling of 6630864 in words is "six million, six hundred thirty thousand, eight hundred sixty-four".