328310501 has 4 divisors (see below), whose sum is σ = 328438572. Its totient is φ = 328182432.

The previous prime is 328310483. The next prime is 328310503. The reversal of 328310501 is 105013823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 105013823 = 467 ⋅224869.

It can be written as a sum of positive squares in 2 ways, for example, as 241336225 + 86974276 = 15535^2 + 9326^2 .

It is a cyclic number.

It is not a de Polignac number, because 328310501 - 2¹⁰ = 328309477 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 (328310503) 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, 60110 + ... + 65343.

It is an arithmetic number, because the mean of its divisors is an integer number (82109643).

Almost surely, 2^328310501 is an apocalyptic number.

It is an amenable number.

328310501 is a deficient number, since it is larger than the sum of its proper divisors (128071).

328310501 is a wasteful number, since it uses less digits than its factorization.

328310501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128070.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 328310501 is about 18119.3405233193. The cubic root of 328310501 is about 689.8609962936.

The spelling of 328310501 in words is "three hundred twenty-eight million, three hundred ten thousand, five hundred one".