656872486 has 16 divisors (see below), whose sum is σ = 1045891440. Its totient is φ = 308339200.

The previous prime is 656872483. The next prime is 656872487. The reversal of 656872486 is 684278656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656872483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10456 + ... + 37723.

It is an arithmetic number, because the mean of its divisors is an integer number (65368215).

Almost surely, 2^656872486 is an apocalyptic number.

656872486 is a deficient number, since it is larger than the sum of its proper divisors (389018954).

656872486 is a wasteful number, since it uses less digits than its factorization.

656872486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48599.

The product of its digits is 3870720, while the sum is 52.

The square root of 656872486 is about 25629.5237177752. The cubic root of 656872486 is about 869.2813398415.

The spelling of 656872486 in words is "six hundred fifty-six million, eight hundred seventy-two thousand, four hundred eighty-six".