328564513 has 4 divisors (see below), whose sum is σ = 328759600. Its totient is φ = 328369428.

The previous prime is 328564507. The next prime is 328564517. The reversal of 328564513 is 315465823.

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 328564513 - 2⁹ = 328564001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328564517) 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, 94995 + ... + 98392.

It is an arithmetic number, because the mean of its divisors is an integer number (82189900).

Almost surely, 2^328564513 is an apocalyptic number.

It is an amenable number.

328564513 is a deficient number, since it is larger than the sum of its proper divisors (195087).

328564513 is a wasteful number, since it uses less digits than its factorization.

328564513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195086.

The product of its digits is 86400, while the sum is 37.

The square root of 328564513 is about 18126.3485843123. The cubic root of 328564513 is about 690.0388642956.

The spelling of 328564513 in words is "three hundred twenty-eight million, five hundred sixty-four thousand, five hundred thirteen".