328501 has 4 divisors (see below), whose sum is σ = 333472. Its totient is φ = 323532.

The previous prime is 328481. The next prime is 328511. The reversal of 328501 is 105823.

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 a cyclic number.

It is not a de Polignac number, because 328501 - 2⁷ = 328373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (328511) 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, 2385 + ... + 2518.

It is an arithmetic number, because the mean of its divisors is an integer number (83368).

2³²⁸⁵⁰¹ is an apocalyptic number.

It is an amenable number.

328501 is a deficient number, since it is larger than the sum of its proper divisors (4971).

328501 is an equidigital number, since it uses as much as digits as its factorization.

328501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4970.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 328501 is about 573.1500676088. The cubic root of 328501 is about 68.9994398890. Note that the first 3 decimals are identical.

The spelling of 328501 in words is "three hundred twenty-eight thousand, five hundred one".