22812689 has 2 divisors, whose sum is σ = 22812690. Its totient is φ = 22812688.

The previous prime is 22812667. The next prime is 22812703. The reversal of 22812689 is 98621822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15737089 + 7075600 = 3967^2 + 2660^2 .

It is a cyclic number.

It is not a de Polignac number, because 22812689 - 2²⁴ = 6035473 is a prime.

It is not a weakly prime, because it can be changed into another prime (22812089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11406344 + 11406345.

It is an arithmetic number, because the mean of its divisors is an integer number (11406345).

Almost surely, 2^22812689 is an apocalyptic number.

It is an amenable number.

22812689 is a deficient number, since it is larger than the sum of its proper divisors (1).

22812689 is an equidigital number, since it uses as much as digits as its factorization.

22812689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 38.

The square root of 22812689 is about 4776.2630790190. The cubic root of 22812689 is about 283.6125817422.

The spelling of 22812689 in words is "twenty-two million, eight hundred twelve thousand, six hundred eighty-nine".