328904 has 8 divisors (see below), whose sum is σ = 616710. Its totient is φ = 164448.

The previous prime is 328901. The next prime is 328919. The reversal of 328904 is 409823.

It can be written as a sum of positive squares in only one way, i.e., 240100 + 88804 = 490^2 + 298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328904.

It is not an unprimeable number, because it can be changed into a prime (328901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20549 + ... + 20564.

2³²⁸⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

328904 is a deficient number, since it is larger than the sum of its proper divisors (287806).

328904 is a wasteful number, since it uses less digits than its factorization.

328904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41119 (or 41115 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 328904 is about 573.5015257172. The cubic root of 328904 is about 69.0276441776.

The spelling of 328904 in words is "three hundred twenty-eight thousand, nine hundred four".