647846632 has 8 divisors (see below), whose sum is σ = 1214712450. Its totient is φ = 323923312.

The previous prime is 647846627. The next prime is 647846707. The reversal of 647846632 is 236648746.

It can be written as a sum of positive squares in only one way, i.e., 625700196 + 22146436 = 25014^2 + 4706^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40490407 + ... + 40490422.

Almost surely, 2^647846632 is an apocalyptic number.

It is an amenable number.

647846632 is a deficient number, since it is larger than the sum of its proper divisors (566865818).

647846632 is a wasteful number, since it uses less digits than its factorization.

647846632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80980835 (or 80980831 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 46.

The square root of 647846632 is about 25452.8315124271. The cubic root of 647846632 is about 865.2814667569.

The spelling of 647846632 in words is "six hundred forty-seven million, eight hundred forty-six thousand, six hundred thirty-two".