23400239 has 2 divisors, whose sum is σ = 23400240. Its totient is φ = 23400238.

The previous prime is 23400203. The next prime is 23400253. The reversal of 23400239 is 93200432.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23400239 - 2¹² = 23396143 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23400259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11700119 + 11700120.

It is an arithmetic number, because the mean of its divisors is an integer number (11700120).

Almost surely, 2^23400239 is an apocalyptic number.

23400239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23400239 is an equidigital number, since it uses as much as digits as its factorization.

23400239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 23400239 is about 4837.3793525007. The cubic root of 23400239 is about 286.0268243867.

The spelling of 23400239 in words is "twenty-three million, four hundred thousand, two hundred thirty-nine".