517172 has 6 divisors (see below), whose sum is σ = 905058. Its totient is φ = 258584.

The previous prime is 517169. The next prime is 517177. The reversal of 517172 is 271715.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 417316 + 99856 = 646^2 + 316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64643 + ... + 64650.

It is an arithmetic number, because the mean of its divisors is an integer number (150843).

2⁵¹⁷¹⁷² is an apocalyptic number.

It is an amenable number.

517172 is a deficient number, since it is larger than the sum of its proper divisors (387886).

517172 is a wasteful number, since it uses less digits than its factorization.

517172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129297 (or 129295 counting only the distinct ones).

The product of its digits is 490, while the sum is 23.

The square root of 517172 is about 719.1467166024. The cubic root of 517172 is about 80.2684730201.

Adding to 517172 its reverse (271715), we get a palindrome (788887).

The spelling of 517172 in words is "five hundred seventeen thousand, one hundred seventy-two".