517886961 has 8 divisors (see below), whose sum is σ = 712790784. Its totient is φ = 334120560.

The previous prime is 517886911. The next prime is 517887053. The reversal of 517886961 is 169688715.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 517886961 - 2¹⁸ = 517624817 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (517886911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2784246 + ... + 2784431.

It is an arithmetic number, because the mean of its divisors is an integer number (89098848).

Almost surely, 2^517886961 is an apocalyptic number.

It is an amenable number.

517886961 is a deficient number, since it is larger than the sum of its proper divisors (194903823).

517886961 is a wasteful number, since it uses less digits than its factorization.

517886961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5568711.

The product of its digits is 725760, while the sum is 51.

The square root of 517886961 is about 22757.1298937278. The cubic root of 517886961 is about 803.0544486083.

The spelling of 517886961 in words is "five hundred seventeen million, eight hundred eighty-six thousand, nine hundred sixty-one".