656968422 has 32 divisors (see below), whose sum is σ = 1457688960. Its totient is φ = 195705920.

The previous prime is 656968421. The next prime is 656968423. The reversal of 656968422 is 224869656.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (656968421) and next prime (656968423).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656968421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80463 + ... + 88250.

It is an arithmetic number, because the mean of its divisors is an integer number (45552780).

Almost surely, 2^656968422 is an apocalyptic number.

656968422 is an abundant number, since it is smaller than the sum of its proper divisors (800720538).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

656968422 is a wasteful number, since it uses less digits than its factorization.

656968422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168788.

The product of its digits is 1244160, while the sum is 48.

The square root of 656968422 is about 25631.3952409930. The cubic root of 656968422 is about 869.3236571947.

The spelling of 656968422 in words is "six hundred fifty-six million, nine hundred sixty-eight thousand, four hundred twenty-two".