656797942 has 32 divisors (see below), whose sum is σ = 1041828480. Its totient is φ = 310202880.

The previous prime is 656797931. The next prime is 656797943. The reversal of 656797942 is 249797656.

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 15 ways as a sum of consecutive naturals, for example, 342378 + ... + 344290.

It is an arithmetic number, because the mean of its divisors is an integer number (32557140).

Almost surely, 2^656797942 is an apocalyptic number.

656797942 is a deficient number, since it is larger than the sum of its proper divisors (385030538).

656797942 is a wasteful number, since it uses less digits than its factorization.

656797942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088.

The product of its digits is 5715360, while the sum is 55.

The square root of 656797942 is about 25628.0694161695. The cubic root of 656797942 is about 869.2484556512.

The spelling of 656797942 in words is "six hundred fifty-six million, seven hundred ninety-seven thousand, nine hundred forty-two".