23438089 has 2 divisors, whose sum is σ = 23438090. Its totient is φ = 23438088.

The previous prime is 23438083. The next prime is 23438111. The reversal of 23438089 is 98083432.

23438089 is nontrivially palindromic in base 14.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20548089 + 2890000 = 4533^2 + 1700^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23438089 is a prime.

It is not a weakly prime, because it can be changed into another prime (23438083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11719044 + 11719045.

It is an arithmetic number, because the mean of its divisors is an integer number (11719045).

Almost surely, 2^23438089 is an apocalyptic number.

It is an amenable number.

23438089 is a deficient number, since it is larger than the sum of its proper divisors (1).

23438089 is an equidigital number, since it uses as much as digits as its factorization.

23438089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 23438089 is about 4841.2900140355. The cubic root of 23438089 is about 286.1809579043.

The spelling of 23438089 in words is "twenty-three million, four hundred thirty-eight thousand, eighty-nine".