647457113 has 4 divisors (see below), whose sum is σ = 657120720. Its totient is φ = 637793508.

The previous prime is 647457059. The next prime is 647457119. The reversal of 647457113 is 311754746.

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: 311754746 = 2 ⋅155877373.

It is a cyclic number.

It is not a de Polignac number, because 647457113 - 2²⁴ = 630679897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (647457119) 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, 4831703 + ... + 4831836.

It is an arithmetic number, because the mean of its divisors is an integer number (164280180).

Almost surely, 2^647457113 is an apocalyptic number.

It is an amenable number.

647457113 is a deficient number, since it is larger than the sum of its proper divisors (9663607).

647457113 is an equidigital number, since it uses as much as digits as its factorization.

647457113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9663606.

The product of its digits is 70560, while the sum is 38.

The square root of 647457113 is about 25445.1785806270. The cubic root of 647457113 is about 865.1080146224.

The spelling of 647457113 in words is "six hundred forty-seven million, four hundred fifty-seven thousand, one hundred thirteen".