22788943 has 2 divisors, whose sum is σ = 22788944. Its totient is φ = 22788942.

The previous prime is 22788869. The next prime is 22788947. The reversal of 22788943 is 34988722.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22788943 - 2⁹ = 22788431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22788943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22788947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11394471 + 11394472.

It is an arithmetic number, because the mean of its divisors is an integer number (11394472).

Almost surely, 2^22788943 is an apocalyptic number.

22788943 is a deficient number, since it is larger than the sum of its proper divisors (1).

22788943 is an equidigital number, since it uses as much as digits as its factorization.

22788943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 193536, while the sum is 43.

The square root of 22788943 is about 4773.7765972027. The cubic root of 22788943 is about 283.5141423393.

The spelling of 22788943 in words is "twenty-two million, seven hundred eighty-eight thousand, nine hundred forty-three".