647670676 has 12 divisors (see below), whose sum is σ = 1133624800. Its totient is φ = 323777880.

The previous prime is 647670637. The next prime is 647670691. The reversal of 647670676 is 676076746.

647670676 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 20281 + ... + 41311.

Almost surely, 2^647670676 is an apocalyptic number.

It is an amenable number.

647670676 is a deficient number, since it is larger than the sum of its proper divisors (485954124).

647670676 is a wasteful number, since it uses less digits than its factorization.

647670676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28734 (or 28732 counting only the distinct ones).

The product of its (nonzero) digits is 1778112, while the sum is 49.

The square root of 647670676 is about 25449.3747663867. The cubic root of 647670676 is about 865.2031224677.

The spelling of 647670676 in words is "six hundred forty-seven million, six hundred seventy thousand, six hundred seventy-six".