22396589 has 2 divisors, whose sum is σ = 22396590. Its totient is φ = 22396588.

The previous prime is 22396567. The next prime is 22396609. The reversal of 22396589 is 98569322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16467364 + 5929225 = 4058^2 + 2435^2 .

It is a cyclic number.

It is not a de Polignac number, because 22396589 - 2¹² = 22392493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22396529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11198294 + 11198295.

It is an arithmetic number, because the mean of its divisors is an integer number (11198295).

Almost surely, 2^22396589 is an apocalyptic number.

It is an amenable number.

22396589 is a deficient number, since it is larger than the sum of its proper divisors (1).

22396589 is an equidigital number, since it uses as much as digits as its factorization.

22396589 is an evil number, because the sum of its binary digits is even.

The product of its digits is 233280, while the sum is 44.

The square root of 22396589 is about 4732.5034601150. The cubic root of 22396589 is about 281.8776400229.

The spelling of 22396589 in words is "twenty-two million, three hundred ninety-six thousand, five hundred eighty-nine".