328976564 has 24 divisors (see below), whose sum is σ = 692583360. Its totient is φ = 133569216.

The previous prime is 328976563. The next prime is 328976573. The reversal of 328976564 is 465679823.

It is a happy number.

It is a super-2 number, since 2×328976564² = 216451159322492192, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328976563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308657 + ... + 309720.

It is an arithmetic number, because the mean of its divisors is an integer number (28857640).

Almost surely, 2^328976564 is an apocalyptic number.

It is an amenable number.

328976564 is an abundant number, since it is smaller than the sum of its proper divisors (363606796).

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

328976564 is a wasteful number, since it uses less digits than its factorization.

328976564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 618407 (or 618405 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 50.

The square root of 328976564 is about 18137.7111014593. The cubic root of 328976564 is about 690.3272018124.

The spelling of 328976564 in words is "three hundred twenty-eight million, nine hundred seventy-six thousand, five hundred sixty-four".