328209 has 8 divisors (see below), whose sum is σ = 500160. Its totient is φ = 187536.

The previous prime is 328177. The next prime is 328213. The reversal of 328209 is 902823.

328209 is nontrivially palindromic in base 8.

328209 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 328209 - 2⁵ = 328177 is a prime.

It is a super-2 number, since 2×328209² = 215442295362, which contains 22 as substring.

328209 is strictly pandigital in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328209.

It is not an unprimeable number, because it can be changed into a prime (328249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7794 + ... + 7835.

It is an arithmetic number, because the mean of its divisors is an integer number (62520).

2³²⁸²⁰⁹ is an apocalyptic number.

It is an amenable number.

328209 is a deficient number, since it is larger than the sum of its proper divisors (171951).

328209 is a wasteful number, since it uses less digits than its factorization.

328209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15639.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 328209 is about 572.8952783886. The cubic root of 328209 is about 68.9789896123.

The spelling of 328209 in words is "three hundred twenty-eight thousand, two hundred nine".