647760676 has 12 divisors (see below), whose sum is σ = 1133782272. Its totient is φ = 323822888.

The previous prime is 647760671. The next prime is 647760677. The reversal of 647760676 is 676067746.

It is not an unprimeable number, because it can be changed into a prime (647760671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20301 + ... + 41323.

It is an arithmetic number, because the mean of its divisors is an integer number (94481856).

Almost surely, 2^647760676 is an apocalyptic number.

It is an amenable number.

647760676 is a deficient number, since it is larger than the sum of its proper divisors (486021596).

647760676 is a wasteful number, since it uses less digits than its factorization.

647760676 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28730 (or 28728 counting only the distinct ones).

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

The square root of 647760676 is about 25451.1429212914. The cubic root of 647760676 is about 865.2431966789.

The spelling of 647760676 in words is "six hundred forty-seven million, seven hundred sixty thousand, six hundred seventy-six".