517372243 has 16 divisors (see below), whose sum is σ = 535847616. Its totient is φ = 499322880.

The previous prime is 517372241. The next prime is 517372307. The reversal of 517372243 is 342273715.

It is a cyclic number.

It is not a de Polignac number, because 517372243 - 2¹ = 517372241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 517372199 and 517372208.

It is not an unprimeable number, because it can be changed into a prime (517372241) 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, 896371 + ... + 896947.

It is an arithmetic number, because the mean of its divisors is an integer number (33490476).

Almost surely, 2^517372243 is an apocalyptic number.

517372243 is a deficient number, since it is larger than the sum of its proper divisors (18475373).

517372243 is a wasteful number, since it uses less digits than its factorization.

517372243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894.

The product of its digits is 35280, while the sum is 34.

The square root of 517372243 is about 22745.8181431225. The cubic root of 517372243 is about 802.7883135727.

The spelling of 517372243 in words is "five hundred seventeen million, three hundred seventy-two thousand, two hundred forty-three".