647838112 has 24 divisors (see below), whose sum is σ = 1276700292. Its totient is φ = 323596800.

The previous prime is 647838109. The next prime is 647838119. The reversal of 647838112 is 211838746.

It can be written as a sum of positive squares in 2 ways, for example, as 641304976 + 6533136 = 25324^2 + 2556^2 .

It is not an unprimeable number, because it can be changed into a prime (647838119) 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, 24412 + ... + 43492.

Almost surely, 2^647838112 is an apocalyptic number.

It is an amenable number.

647838112 is a deficient number, since it is larger than the sum of its proper divisors (628862180).

647838112 is a wasteful number, since it uses less digits than its factorization.

647838112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20152 (or 20144 counting only the distinct ones).

The product of its digits is 64512, while the sum is 40.

The square root of 647838112 is about 25452.6641434644. The cubic root of 647838112 is about 865.2776735596.

The spelling of 647838112 in words is "six hundred forty-seven million, eight hundred thirty-eight thousand, one hundred twelve".