328807 has 4 divisors (see below), whose sum is σ = 334440. Its totient is φ = 323176.

The previous prime is 328789. The next prime is 328813. The reversal of 328807 is 708823.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-328807 is a prime.

It is a super-2 number, since 2×328807² = 216228086498, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328837) 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, 2728 + ... + 2845.

It is an arithmetic number, because the mean of its divisors is an integer number (83610).

2³²⁸⁸⁰⁷ is an apocalyptic number.

328807 is a deficient number, since it is larger than the sum of its proper divisors (5633).

328807 is an equidigital number, since it uses as much as digits as its factorization.

328807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5632.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 328807 is about 573.4169512667. The cubic root of 328807 is about 69.0208576586.

The spelling of 328807 in words is "three hundred twenty-eight thousand, eight hundred seven".