656096789 has 2 divisors, whose sum is σ = 656096790. Its totient is φ = 656096788.

The previous prime is 656096773. The next prime is 656096821. The reversal of 656096789 is 987690656.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 644652100 + 11444689 = 25390^2 + 3383^2 .

It is a cyclic number.

It is not a de Polignac number, because 656096789 - 2⁴ = 656096773 is a prime.

It is a super-2 number, since 2×656096789² = 860925993072221042, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656006789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328048394 + 328048395.

It is an arithmetic number, because the mean of its divisors is an integer number (328048395).

Almost surely, 2^656096789 is an apocalyptic number.

It is an amenable number.

656096789 is a deficient number, since it is larger than the sum of its proper divisors (1).

656096789 is an equidigital number, since it uses as much as digits as its factorization.

656096789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The square root of 656096789 is about 25614.3863678207. The cubic root of 656096789 is about 868.9390285907.

The spelling of 656096789 in words is "six hundred fifty-six million, ninety-six thousand, seven hundred eighty-nine".