517065672 has 16 divisors (see below), whose sum is σ = 1292664240. Its totient is φ = 172355216.

The previous prime is 517065667. The next prime is 517065701. The reversal of 517065672 is 276560715.

It is a super-3 number, since 3×517065672³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 517065672.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10772178 + ... + 10772225.

It is an arithmetic number, because the mean of its divisors is an integer number (80791515).

Almost surely, 2^517065672 is an apocalyptic number.

It is an amenable number.

517065672 is an abundant number, since it is smaller than the sum of its proper divisors (775598568).

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

517065672 is a wasteful number, since it uses less digits than its factorization.

517065672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21544412 (or 21544408 counting only the distinct ones).

The product of its (nonzero) digits is 88200, while the sum is 39.

The square root of 517065672 is about 22739.0780815758. The cubic root of 517065672 is about 802.6297170967.

The spelling of 517065672 in words is "five hundred seventeen million, sixty-five thousand, six hundred seventy-two".