328506 has 8 divisors (see below), whose sum is σ = 657024. Its totient is φ = 109500.

The previous prime is 328481. The next prime is 328511. The reversal of 328506 is 605823.

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

328506 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 328506.

It is an unprimeable number.

328506 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27370 + ... + 27381.

It is an arithmetic number, because the mean of its divisors is an integer number (82128).

2³²⁸⁵⁰⁶ is an apocalyptic number.

328506 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

328506 is a wasteful number, since it uses less digits than its factorization.

328506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54756.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 328506 is about 573.1544294516. The cubic root of 328506 is about 68.9997899595. Note that the first 3 decimals are identical.

The spelling of 328506 in words is "three hundred twenty-eight thousand, five hundred six".