516960823 has 4 divisors (see below), whose sum is σ = 517152168. Its totient is φ = 516769480.

The previous prime is 516960817. The next prime is 516960833. The reversal of 516960823 is 328069615.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 328069615 = 5 ⋅65613923.

It is a cyclic number.

It is not a de Polignac number, because 516960823 - 2¹⁷ = 516829751 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 a congruent number.

It is not an unprimeable number, because it can be changed into a prime (516960833) 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, 91561 + ... + 97042.

It is an arithmetic number, because the mean of its divisors is an integer number (129288042).

Almost surely, 2^516960823 is an apocalyptic number.

516960823 is a deficient number, since it is larger than the sum of its proper divisors (191345).

516960823 is a wasteful number, since it uses less digits than its factorization.

516960823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191344.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 516960823 is about 22736.7724842380. The cubic root of 516960823 is about 802.5754618272.

The spelling of 516960823 in words is "five hundred sixteen million, nine hundred sixty thousand, eight hundred twenty-three".