23331589 has 2 divisors, whose sum is σ = 23331590. Its totient is φ = 23331588.

The previous prime is 23331587. The next prime is 23331593. The reversal of 23331589 is 98513332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19210689 + 4120900 = 4383^2 + 2030^2 .

It is a cyclic number.

It is not a de Polignac number, because 23331589 - 2¹ = 23331587 is a prime.

Together with 23331587, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23331587) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11665794 + 11665795.

It is an arithmetic number, because the mean of its divisors is an integer number (11665795).

Almost surely, 2^23331589 is an apocalyptic number.

It is an amenable number.

23331589 is a deficient number, since it is larger than the sum of its proper divisors (1).

23331589 is an equidigital number, since it uses as much as digits as its factorization.

23331589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 34.

The square root of 23331589 is about 4830.2783563683. The cubic root of 23331589 is about 285.7468418497.

The spelling of 23331589 in words is "twenty-three million, three hundred thirty-one thousand, five hundred eighty-nine".