517338172 has 24 divisors (see below), whose sum is σ = 1017376416. Its totient is φ = 228389568.

The previous prime is 517338161. The next prime is 517338179. The reversal of 517338172 is 271833715.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517338179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215083 + ... + 217474.

It is an arithmetic number, because the mean of its divisors is an integer number (42390684).

Almost surely, 2^517338172 is an apocalyptic number.

517338172 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

517338172 is a deficient number, since it is larger than the sum of its proper divisors (500038244).

517338172 is a wasteful number, since it uses less digits than its factorization.

517338172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432597 (or 432595 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 517338172 is about 22745.0691799344. The cubic root of 517338172 is about 802.7706909283.

The spelling of 517338172 in words is "five hundred seventeen million, three hundred thirty-eight thousand, one hundred seventy-two".