656383423 has 2 divisors, whose sum is σ = 656383424. Its totient is φ = 656383422.

The previous prime is 656383417. The next prime is 656383451. The reversal of 656383423 is 324383656.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 656383423 - 2¹³ = 656375231 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (656383463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 328191711 + 328191712.

It is an arithmetic number, because the mean of its divisors is an integer number (328191712).

Almost surely, 2^656383423 is an apocalyptic number.

656383423 is a deficient number, since it is larger than the sum of its proper divisors (1).

656383423 is an equidigital number, since it uses as much as digits as its factorization.

656383423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 40.

The square root of 656383423 is about 25619.9809328579. The cubic root of 656383423 is about 869.0655501709.

The spelling of 656383423 in words is "six hundred fifty-six million, three hundred eighty-three thousand, four hundred twenty-three".