23445589 has 2 divisors, whose sum is σ = 23445590. Its totient is φ = 23445588.

The previous prime is 23445559. The next prime is 23445593. The reversal of 23445589 is 98554432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23444964 + 625 = 4842^2 + 25^2 .

It is a cyclic number.

It is not a de Polignac number, because 23445589 - 2¹⁷ = 23314517 is a prime.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23445509) 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, 11722794 + 11722795.

It is an arithmetic number, because the mean of its divisors is an integer number (11722795).

Almost surely, 2^23445589 is an apocalyptic number.

It is an amenable number.

23445589 is a deficient number, since it is larger than the sum of its proper divisors (1).

23445589 is an equidigital number, since it uses as much as digits as its factorization.

23445589 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 40.

The square root of 23445589 is about 4842.0645390164. The cubic root of 23445589 is about 286.2114798506.

The spelling of 23445589 in words is "twenty-three million, four hundred forty-five thousand, five hundred eighty-nine".