518328923 has 16 divisors (see below), whose sum is σ = 617607936. Its totient is φ = 425748960.

The previous prime is 518328917. The next prime is 518328931. The reversal of 518328923 is 329823815.

It is not a de Polignac number, because 518328923 - 2⁶ = 518328859 is a prime.

It is a Smith number, since the sum of its digits (41) 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 (518328913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293 + ... + 32198.

It is an arithmetic number, because the mean of its divisors is an integer number (38600496).

Almost surely, 2^518328923 is an apocalyptic number.

518328923 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

518328923 is a deficient number, since it is larger than the sum of its proper divisors (99279013).

518328923 is a wasteful number, since it uses less digits than its factorization.

518328923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32594.

The product of its digits is 103680, while the sum is 41.

The square root of 518328923 is about 22766.8382301979. The cubic root of 518328923 is about 803.2828244655.

The spelling of 518328923 in words is "five hundred eighteen million, three hundred twenty-eight thousand, nine hundred twenty-three".