328616563 has 4 divisors (see below), whose sum is σ = 358490808. Its totient is φ = 298742320.

The previous prime is 328616549. The next prime is 328616567. The reversal of 328616563 is 365616823.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 328616563 - 2⁵ = 328616531 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328616567) 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, 14937106 + ... + 14937127.

It is an arithmetic number, because the mean of its divisors is an integer number (89622702).

Almost surely, 2^328616563 is an apocalyptic number.

328616563 is a deficient number, since it is larger than the sum of its proper divisors (29874245).

328616563 is a wasteful number, since it uses less digits than its factorization.

328616563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29874244.

The product of its digits is 155520, while the sum is 40.

The square root of 328616563 is about 18127.7842826971. The cubic root of 328616563 is about 690.0753001907.

The spelling of 328616563 in words is "three hundred twenty-eight million, six hundred sixteen thousand, five hundred sixty-three".