517360872 has 64 divisors (see below), whose sum is σ = 1482088320. Its totient is φ = 147426048.

The previous prime is 517360871. The next prime is 517360901. The reversal of 517360872 is 278063715.

It is a self number, because there is not a number n which added to its sum of digits gives 517360872.

It is not an unprimeable number, because it can be changed into a prime (517360871) 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, 62818 + ... + 70574.

It is an arithmetic number, because the mean of its divisors is an integer number (23157630).

Almost surely, 2^517360872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 517360872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (741044160).

517360872 is an abundant number, since it is smaller than the sum of its proper divisors (964727448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

517360872 is a wasteful number, since it uses less digits than its factorization.

517360872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8170 (or 8166 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 39.

The square root of 517360872 is about 22745.5681837144. The cubic root of 517360872 is about 802.7824322027.

The spelling of 517360872 in words is "five hundred seventeen million, three hundred sixty thousand, eight hundred seventy-two".