328764 has 12 divisors (see below), whose sum is σ = 767144. Its totient is φ = 109584.

The previous prime is 328753. The next prime is 328777. The reversal of 328764 is 467823.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328764.

It is an unprimeable number.

328764 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13687 + ... + 13710.

2³²⁸⁷⁶⁴ is an apocalyptic number.

It is an amenable number.

328764 is an abundant number, since it is smaller than the sum of its proper divisors (438380).

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

328764 is a wasteful number, since it uses less digits than its factorization.

328764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27404 (or 27402 counting only the distinct ones).

The product of its digits is 8064, while the sum is 30.

The square root of 328764 is about 573.3794555092. The cubic root of 328764 is about 69.0178487747.

The spelling of 328764 in words is "three hundred twenty-eight thousand, seven hundred sixty-four".