647895832 has 16 divisors (see below), whose sum is σ = 1267622640. Its totient is φ = 309863136.

The previous prime is 647895821. The next prime is 647895841. The reversal of 647895832 is 238598746.

It is a self number, because there is not a number n which added to its sum of digits gives 647895832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1760403 + ... + 1760770.

It is an arithmetic number, because the mean of its divisors is an integer number (79226415).

Almost surely, 2^647895832 is an apocalyptic number.

It is an amenable number.

647895832 is a deficient number, since it is larger than the sum of its proper divisors (619726808).

647895832 is a wasteful number, since it uses less digits than its factorization.

647895832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3521202 (or 3521198 counting only the distinct ones).

The product of its digits is 2903040, while the sum is 52.

The square root of 647895832 is about 25453.7979877267. The cubic root of 647895832 is about 865.3033704856.

The spelling of 647895832 in words is "six hundred forty-seven million, eight hundred ninety-five thousand, eight hundred thirty-two".