328239 has 8 divisors (see below), whose sum is σ = 486320. Its totient is φ = 218808.

The previous prime is 328213. The next prime is 328243. The reversal of 328239 is 932823.

It is not a de Polignac number, because 328239 - 2⁸ = 327983 is a prime.

It is a super-2 number, since 2×328239² = 215481682242, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 12157 = 328239 / (3 + 2 + 8 + 2 + 3 + 9).

It is a d-powerful number, because it can be written as 3⁵ + 2¹⁶ + 2¹⁸ + 8² + 3⁵ + 9 .

It is a Duffinian number.

It is a nialpdrome in base 13.

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 328239.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6052 + ... + 6105.

It is an arithmetic number, because the mean of its divisors is an integer number (60790).

2³²⁸²³⁹ is an apocalyptic number.

328239 is a deficient number, since it is larger than the sum of its proper divisors (158081).

328239 is a wasteful number, since it uses less digits than its factorization.

328239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12166 (or 12160 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 328239 is about 572.9214605860. The cubic root of 328239 is about 68.9810912270.

It can be divided in two parts, 3282 and 39, that added together give a triangular number (3321 = T₈₁).

The spelling of 328239 in words is "three hundred twenty-eight thousand, two hundred thirty-nine".