23523239 has 2 divisors, whose sum is σ = 23523240. Its totient is φ = 23523238.

The previous prime is 23523191. The next prime is 23523251. The reversal of 23523239 is 93232532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23523239 - 2¹⁶ = 23457703 is a prime.

It is a super-2 number, since 2×23523239² = 1106685546102242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23523259) 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, 11761619 + 11761620.

It is an arithmetic number, because the mean of its divisors is an integer number (11761620).

Almost surely, 2^23523239 is an apocalyptic number.

23523239 is a deficient number, since it is larger than the sum of its proper divisors (1).

23523239 is an equidigital number, since it uses as much as digits as its factorization.

23523239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9720, while the sum is 29.

The square root of 23523239 is about 4850.0761849686. The cubic root of 23523239 is about 286.5271018548.

The spelling of 23523239 in words is "twenty-three million, five hundred twenty-three thousand, two hundred thirty-nine".