22470989 has 2 divisors, whose sum is σ = 22470990. Its totient is φ = 22470988.

The previous prime is 22470979. The next prime is 22471013. The reversal of 22470989 is 98907422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22250089 + 220900 = 4717^2 + 470^2 .

It is a cyclic number.

It is not a de Polignac number, because 22470989 - 2⁸ = 22470733 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22470979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11235494 + 11235495.

It is an arithmetic number, because the mean of its divisors is an integer number (11235495).

Almost surely, 2^22470989 is an apocalyptic number.

It is an amenable number.

22470989 is a deficient number, since it is larger than the sum of its proper divisors (1).

22470989 is an equidigital number, since it uses as much as digits as its factorization.

22470989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 22470989 is about 4740.3574759716. The cubic root of 22470989 is about 282.1894213836.

The spelling of 22470989 in words is "twenty-two million, four hundred seventy thousand, nine hundred eighty-nine".