656807396 has 12 divisors (see below), whose sum is σ = 1313614848. Its totient is φ = 281488872.

The previous prime is 656807383. The next prime is 656807449. The reversal of 656807396 is 693708656.

656807396 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11728676 + ... + 11728731.

It is an arithmetic number, because the mean of its divisors is an integer number (109467904).

Almost surely, 2^656807396 is an apocalyptic number.

It is an amenable number.

656807396 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

656807396 is a wasteful number, since it uses less digits than its factorization.

656807396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23457418 (or 23457416 counting only the distinct ones).

The product of its (nonzero) digits is 1632960, while the sum is 50.

The square root of 656807396 is about 25628.2538617051. The cubic root of 656807396 is about 869.2526263075.

The spelling of 656807396 in words is "six hundred fifty-six million, eight hundred seven thousand, three hundred ninety-six".