22022789 has 2 divisors, whose sum is σ = 22022790. Its totient is φ = 22022788.

The previous prime is 22022773. The next prime is 22022797. The reversal of 22022789 is 98722022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13082689 + 8940100 = 3617^2 + 2990^2 .

It is a cyclic number.

It is not a de Polignac number, because 22022789 - 2⁴ = 22022773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22022389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11011394 + 11011395.

It is an arithmetic number, because the mean of its divisors is an integer number (11011395).

Almost surely, 2^22022789 is an apocalyptic number.

It is an amenable number.

22022789 is a deficient number, since it is larger than the sum of its proper divisors (1).

22022789 is an equidigital number, since it uses as much as digits as its factorization.

22022789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 22022789 is about 4692.8444466017. The cubic root of 22022789 is about 280.3006506995.

The spelling of 22022789 in words is "twenty-two million, twenty-two thousand, seven hundred eighty-nine".