647335056 has 40 divisors (see below), whose sum is σ = 1726230784. Its totient is φ = 208817280.

The previous prime is 647335043. The next prime is 647335067. The reversal of 647335056 is 650533746.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216031 + ... + 219006.

Almost surely, 2^647335056 is an apocalyptic number.

It is an amenable number.

647335056 is an abundant number, since it is smaller than the sum of its proper divisors (1078895728).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

647335056 is a wasteful number, since it uses less digits than its factorization.

647335056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435079 (or 435073 counting only the distinct ones).

The product of its (nonzero) digits is 226800, while the sum is 39.

The square root of 647335056 is about 25442.7800367806. The cubic root of 647335056 is about 865.0536485375.

The spelling of 647335056 in words is "six hundred forty-seven million, three hundred thirty-five thousand, fifty-six".