656797941 has 24 divisors (see below), whose sum is σ = 1008993024. Its totient is φ = 410271360.

The previous prime is 656797931. The next prime is 656797943. The reversal of 656797941 is 149797656.

656797941 is a `hidden beast` number, since 6 + 567 + 9 + 79 + 4 + 1 = 666.

It is not a de Polignac number, because 656797941 - 2¹⁷ = 656666869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656797943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 25276 + ... + 44186.

It is an arithmetic number, because the mean of its divisors is an integer number (42041376).

Almost surely, 2^656797941 is an apocalyptic number.

It is an amenable number.

656797941 is a deficient number, since it is larger than the sum of its proper divisors (352195083).

656797941 is a wasteful number, since it uses less digits than its factorization.

656797941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19161 (or 19158 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 656797941 is about 25628.0693966596. The cubic root of 656797941 is about 869.2484552100.

The spelling of 656797941 in words is "six hundred fifty-six million, seven hundred ninety-seven thousand, nine hundred forty-one".