647492716 has 24 divisors (see below), whose sum is σ = 1284501680. Its totient is φ = 283113792.

The previous prime is 647492701. The next prime is 647492749. The reversal of 647492716 is 617294746.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326691 + ... + 328666.

Almost surely, 2^647492716 is an apocalyptic number.

It is an amenable number.

647492716 is a deficient number, since it is larger than the sum of its proper divisors (637008964).

647492716 is a wasteful number, since it uses less digits than its factorization.

647492716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655393 (or 655391 counting only the distinct ones).

The product of its digits is 508032, while the sum is 46.

The square root of 647492716 is about 25445.8781730951. The cubic root of 647492716 is about 865.1238714647.

The spelling of 647492716 in words is "six hundred forty-seven million, four hundred ninety-two thousand, seven hundred sixteen".