328917 has 4 divisors (see below), whose sum is σ = 438560. Its totient is φ = 219276.

The previous prime is 328901. The next prime is 328919. The reversal of 328917 is 719823.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 328917 - 2⁴ = 328901 is a prime.

It is a D-number.

It is a Duffinian number.

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 328917.

It is not an unprimeable number, because it can be changed into a prime (328919) 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, 54817 + ... + 54822.

It is an arithmetic number, because the mean of its divisors is an integer number (109640).

2³²⁸⁹¹⁷ is an apocalyptic number.

It is an amenable number.

328917 is a deficient number, since it is larger than the sum of its proper divisors (109643).

328917 is a wasteful number, since it uses less digits than its factorization.

328917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109642.

The product of its digits is 3024, while the sum is 30.

The square root of 328917 is about 573.5128594897. The cubic root of 328917 is about 69.0285536097.

It can be divided in two parts, 3 and 28917, that added together give a triangular number (28920 = T₂₄₀).

The spelling of 328917 in words is "three hundred twenty-eight thousand, nine hundred seventeen".