6517913 has 4 divisors (see below), whose sum is σ = 6656640. Its totient is φ = 6379188.

The previous prime is 6517891. The next prime is 6517921. The reversal of 6517913 is 3197156.

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 6517913 - 2¹² = 6513817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6517913.

It is not an unprimeable number, because it can be changed into a prime (6517933) 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, 69293 + ... + 69386.

It is an arithmetic number, because the mean of its divisors is an integer number (1664160).

Almost surely, 2^6517913 is an apocalyptic number.

It is an amenable number.

6517913 is a deficient number, since it is larger than the sum of its proper divisors (138727).

6517913 is a wasteful number, since it uses less digits than its factorization.

6517913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138726.

The product of its digits is 5670, while the sum is 32.

The square root of 6517913 is about 2553.0203681130. The cubic root of 6517913 is about 186.7968377054.

The spelling of 6517913 in words is "six million, five hundred seventeen thousand, nine hundred thirteen".