23426813 has 2 divisors, whose sum is σ = 23426814. Its totient is φ = 23426812.

The previous prime is 23426803. The next prime is 23426827. The reversal of 23426813 is 31862432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22829284 + 597529 = 4778^2 + 773^2 .

It is a cyclic number.

It is not a de Polignac number, because 23426813 - 2⁴ = 23426797 is a prime.

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 (23426803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11713406 + 11713407.

It is an arithmetic number, because the mean of its divisors is an integer number (11713407).

Almost surely, 2^23426813 is an apocalyptic number.

It is an amenable number.

23426813 is a deficient number, since it is larger than the sum of its proper divisors (1).

23426813 is an equidigital number, since it uses as much as digits as its factorization.

23426813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 29.

The square root of 23426813 is about 4840.1253082952. The cubic root of 23426813 is about 286.1350569192.

The spelling of 23426813 in words is "twenty-three million, four hundred twenty-six thousand, eight hundred thirteen".