320983864 has 32 divisors (see below), whose sum is σ = 613025280. Its totient is φ = 157538304.

The previous prime is 320983823. The next prime is 320983867. The reversal of 320983864 is 468389023.

It is a self number, because there is not a number n which added to its sum of digits gives 320983864.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320983867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96924 + ... + 100180.

It is an arithmetic number, because the mean of its divisors is an integer number (19157040).

Almost surely, 2^320983864 is an apocalyptic number.

It is an amenable number.

320983864 is a deficient number, since it is larger than the sum of its proper divisors (292041416).

320983864 is a wasteful number, since it uses less digits than its factorization.

320983864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3487 (or 3483 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 43.

The square root of 320983864 is about 17916.0225496621. The cubic root of 320983864 is about 684.6906547160.

The spelling of 320983864 in words is "three hundred twenty million, nine hundred eighty-three thousand, eight hundred sixty-four".