328307563 has 4 divisors (see below), whose sum is σ = 328354240. Its totient is φ = 328260888.

The previous prime is 328307533. The next prime is 328307611. The reversal of 328307563 is 365703823.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 365703823 = 2521 ⋅145063.

It is a cyclic number.

It is not a de Polignac number, because 328307563 - 2⁵ = 328307531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (328307503) 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, 10395 + ... + 27652.

It is an arithmetic number, because the mean of its divisors is an integer number (82088560).

Almost surely, 2^328307563 is an apocalyptic number.

328307563 is a deficient number, since it is larger than the sum of its proper divisors (46677).

328307563 is an equidigital number, since it uses as much as digits as its factorization.

328307563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46676.

The product of its (nonzero) digits is 90720, while the sum is 37.

The square root of 328307563 is about 18119.2594495470. The cubic root of 328307563 is about 689.8589384676.

The spelling of 328307563 in words is "three hundred twenty-eight million, three hundred seven thousand, five hundred sixty-three".