647460766 has 16 divisors (see below), whose sum is σ = 995697360. Its totient is φ = 315574720.

The previous prime is 647460727. The next prime is 647460797. The reversal of 647460766 is 667064746.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130320 + ... + 135196.

It is an arithmetic number, because the mean of its divisors is an integer number (62231085).

Almost surely, 2^647460766 is an apocalyptic number.

647460766 is a deficient number, since it is larger than the sum of its proper divisors (348236594).

647460766 is a wasteful number, since it uses less digits than its factorization.

647460766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6539.

The product of its (nonzero) digits is 1016064, while the sum is 46.

The square root of 647460766 is about 25445.2503622975. The cubic root of 647460766 is about 865.1096416200.

The spelling of 647460766 in words is "six hundred forty-seven million, four hundred sixty thousand, seven hundred sixty-six".