328537 has 4 divisors (see below), whose sum is σ = 358416. Its totient is φ = 298660.

The previous prime is 328519. The next prime is 328543. The reversal of 328537 is 735823.

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 a cyclic number.

It is not a de Polignac number, because 328537 - 2¹⁵ = 295769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328037) 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, 14923 + ... + 14944.

It is an arithmetic number, because the mean of its divisors is an integer number (89604).

2³²⁸⁵³⁷ is an apocalyptic number.

It is an amenable number.

328537 is a deficient number, since it is larger than the sum of its proper divisors (29879).

328537 is a wasteful number, since it uses less digits than its factorization.

328537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29878.

The product of its digits is 5040, while the sum is 28.

The square root of 328537 is about 573.1814721360. The cubic root of 328537 is about 69.0019603168.

Subtracting from 328537 its sum of digits (28), we obtain a cube (328509 = 69³).

The spelling of 328537 in words is "three hundred twenty-eight thousand, five hundred thirty-seven".