517397127 has 16 divisors (see below), whose sum is σ = 750593760. Its totient is φ = 315113472.

The previous prime is 517397123. The next prime is 517397129. The reversal of 517397127 is 721793715.

It is not a de Polignac number, because 517397127 - 2² = 517397123 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517397123) 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, 64602 + ... + 72167.

It is an arithmetic number, because the mean of its divisors is an integer number (46912110).

Almost surely, 2^517397127 is an apocalyptic number.

517397127 is a deficient number, since it is larger than the sum of its proper divisors (233196633).

517397127 is a wasteful number, since it uses less digits than its factorization.

517397127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136882.

The product of its digits is 92610, while the sum is 42.

The square root of 517397127 is about 22746.3651381930. The cubic root of 517397127 is about 802.8011839089.

The spelling of 517397127 in words is "five hundred seventeen million, three hundred ninety-seven thousand, one hundred twenty-seven".