328907 has 4 divisors (see below), whose sum is σ = 336600. Its totient is φ = 321216.

The previous prime is 328901. The next prime is 328919. The reversal of 328907 is 709823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328907 - 2⁴ = 328891 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 328907.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328907.

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 in 3 ways as a sum of consecutive naturals, for example, 3782 + ... + 3867.

It is an arithmetic number, because the mean of its divisors is an integer number (84150).

2³²⁸⁹⁰⁷ is an apocalyptic number.

328907 is a deficient number, since it is larger than the sum of its proper divisors (7693).

328907 is an equidigital number, since it uses as much as digits as its factorization.

328907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7692.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 328907 is about 573.5041412231. The cubic root of 328907 is about 69.0278540487.

The spelling of 328907 in words is "three hundred twenty-eight thousand, nine hundred seven".