517106913 has 4 divisors (see below), whose sum is σ = 689475888. Its totient is φ = 344737940.

The previous prime is 517106897. The next prime is 517106921. The reversal of 517106913 is 319601715.

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.

It is a cyclic number.

It is not a de Polignac number, because 517106913 - 2⁴ = 517106897 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (517106923) 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, 86184483 + ... + 86184488.

It is an arithmetic number, because the mean of its divisors is an integer number (172368972).

Almost surely, 2^517106913 is an apocalyptic number.

It is an amenable number.

517106913 is a deficient number, since it is larger than the sum of its proper divisors (172368975).

517106913 is a wasteful number, since it uses less digits than its factorization.

517106913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172368974.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 517106913 is about 22739.9848944541. The cubic root of 517106913 is about 802.6510556964.

The spelling of 517106913 in words is "five hundred seventeen million, one hundred six thousand, nine hundred thirteen".