656797673 has 16 divisors (see below), whose sum is σ = 755748864. Its totient is φ = 559144080.

The previous prime is 656797667. The next prime is 656797723. The reversal of 656797673 is 376797656.

It is a cyclic number.

It is not a de Polignac number, because 656797673 - 2¹⁴ = 656781289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (656797613) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1081736 + ... + 1082342.

It is an arithmetic number, because the mean of its divisors is an integer number (47234304).

Almost surely, 2^656797673 is an apocalyptic number.

It is an amenable number.

656797673 is a deficient number, since it is larger than the sum of its proper divisors (98951191).

656797673 is a wasteful number, since it uses less digits than its factorization.

656797673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1412.

The product of its digits is 10001880, while the sum is 56.

The square root of 656797673 is about 25628.0641680171. The cubic root of 656797673 is about 869.2483369806.

The spelling of 656797673 in words is "six hundred fifty-six million, seven hundred ninety-seven thousand, six hundred seventy-three".