22989493 has 2 divisors, whose sum is σ = 22989494. Its totient is φ = 22989492.

The previous prime is 22989437. The next prime is 22989503. The reversal of 22989493 is 39498922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19518724 + 3470769 = 4418^2 + 1863^2 .

It is a cyclic number.

It is not a de Polignac number, because 22989493 - 2²¹ = 20892341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22989403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11494746 + 11494747.

It is an arithmetic number, because the mean of its divisors is an integer number (11494747).

Almost surely, 2^22989493 is an apocalyptic number.

It is an amenable number.

22989493 is a deficient number, since it is larger than the sum of its proper divisors (1).

22989493 is an equidigital number, since it uses as much as digits as its factorization.

22989493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 46.

The square root of 22989493 is about 4794.7359677046. The cubic root of 22989493 is about 284.3433863017.

The spelling of 22989493 in words is "twenty-two million, nine hundred eighty-nine thousand, four hundred ninety-three".