517130893 has 4 divisors (see below), whose sum is σ = 521964000. Its totient is φ = 512297788.

The previous prime is 517130879. The next prime is 517130921. The reversal of 517130893 is 398031715.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 398031715 = 5 ⋅79606343.

It is a cyclic number.

It is not a de Polignac number, because 517130893 - 2²⁵ = 483576461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (517130863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2416393 + ... + 2416606.

It is an arithmetic number, because the mean of its divisors is an integer number (130491000).

Almost surely, 2^517130893 is an apocalyptic number.

It is an amenable number.

517130893 is a deficient number, since it is larger than the sum of its proper divisors (4833107).

517130893 is a wasteful number, since it uses less digits than its factorization.

517130893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4833106.

The product of its (nonzero) digits is 22680, while the sum is 37.

The square root of 517130893 is about 22740.5121534235. The cubic root of 517130893 is about 802.6634627211.

The spelling of 517130893 in words is "five hundred seventeen million, one hundred thirty thousand, eight hundred ninety-three".