327663664 has 20 divisors (see below), whose sum is σ = 668262040. Its totient is φ = 155208960.

The previous prime is 327663659. The next prime is 327663689. The reversal of 327663664 is 466366723.

It is a self number, because there is not a number n which added to its sum of digits gives 327663664.

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, 538617 + ... + 539224.

It is an arithmetic number, because the mean of its divisors is an integer number (33413102).

Almost surely, 2^327663664 is an apocalyptic number.

It is an amenable number.

327663664 is an abundant number, since it is smaller than the sum of its proper divisors (340598376).

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

327663664 is a wasteful number, since it uses less digits than its factorization.

327663664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077868 (or 1077862 counting only the distinct ones).

The product of its digits is 653184, while the sum is 43.

The square root of 327663664 is about 18101.4823702370. The cubic root of 327663664 is about 689.4076439645.

The spelling of 327663664 in words is "three hundred twenty-seven million, six hundred sixty-three thousand, six hundred sixty-four".