22993589 has 2 divisors, whose sum is σ = 22993590. Its totient is φ = 22993588.

The previous prime is 22993561. The next prime is 22993609. The reversal of 22993589 is 98539922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20566225 + 2427364 = 4535^2 + 1558^2 .

It is a cyclic number.

It is not a de Polignac number, because 22993589 - 2¹² = 22989493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22993189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11496794 + 11496795.

It is an arithmetic number, because the mean of its divisors is an integer number (11496795).

Almost surely, 2^22993589 is an apocalyptic number.

It is an amenable number.

22993589 is a deficient number, since it is larger than the sum of its proper divisors (1).

22993589 is an equidigital number, since it uses as much as digits as its factorization.

22993589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 349920, while the sum is 47.

The square root of 22993589 is about 4795.1630837751. The cubic root of 22993589 is about 284.3602722961.

The spelling of 22993589 in words is "twenty-two million, nine hundred ninety-three thousand, five hundred eighty-nine".