656768323 has 2 divisors, whose sum is σ = 656768324. Its totient is φ = 656768322.

The previous prime is 656768311. The next prime is 656768341. The reversal of 656768323 is 323867656.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656768323 - 2²⁵ = 623213891 is a prime.

It is not a weakly prime, because it can be changed into another prime (656768303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328384161 + 328384162.

It is an arithmetic number, because the mean of its divisors is an integer number (328384162).

Almost surely, 2^656768323 is an apocalyptic number.

656768323 is a deficient number, since it is larger than the sum of its proper divisors (1).

656768323 is an equidigital number, since it uses as much as digits as its factorization.

656768323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1088640, while the sum is 46.

The square root of 656768323 is about 25627.4915471647. The cubic root of 656768323 is about 869.2353888943.

The spelling of 656768323 in words is "six hundred fifty-six million, seven hundred sixty-eight thousand, three hundred twenty-three".