22920089 has 2 divisors, whose sum is σ = 22920090. Its totient is φ = 22920088.

The previous prime is 22920083. The next prime is 22920091. The reversal of 22920089 is 98002922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13104400 + 9815689 = 3620^2 + 3133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22920089 is a prime.

Together with 22920091, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22920083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11460044 + 11460045.

It is an arithmetic number, because the mean of its divisors is an integer number (11460045).

Almost surely, 2^22920089 is an apocalyptic number.

It is an amenable number.

22920089 is a deficient number, since it is larger than the sum of its proper divisors (1).

22920089 is an equidigital number, since it uses as much as digits as its factorization.

22920089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 22920089 is about 4787.4929764962. The cubic root of 22920089 is about 284.0569589188.

The spelling of 22920089 in words is "twenty-two million, nine hundred twenty thousand, eighty-nine".