647032712 has 16 divisors (see below), whose sum is σ = 1213457100. Its totient is φ = 323444160.

The previous prime is 647032697. The next prime is 647032723. The reversal of 647032712 is 217230746.

It can be written as a sum of positive squares in 2 ways, for example, as 617721316 + 29311396 = 24854^2 + 5414^2 .

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, 61262 + ... + 71042.

Almost surely, 2^647032712 is an apocalyptic number.

It is an amenable number.

647032712 is a deficient number, since it is larger than the sum of its proper divisors (566424388).

647032712 is a wasteful number, since it uses less digits than its factorization.

647032712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18056 (or 18052 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 647032712 is about 25436.8376965377. The cubic root of 647032712 is about 864.9189503843.

The spelling of 647032712 in words is "six hundred forty-seven million, thirty-two thousand, seven hundred twelve".