22089497 has 2 divisors, whose sum is σ = 22089498. Its totient is φ = 22089496.

The previous prime is 22089493. The next prime is 22089517. The reversal of 22089497 is 79498022.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12823561 + 9265936 = 3581^2 + 3044^2 .

It is a cyclic number.

It is not a de Polignac number, because 22089497 - 2² = 22089493 is a prime.

It is not a weakly prime, because it can be changed into another prime (22089493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11044748 + 11044749.

It is an arithmetic number, because the mean of its divisors is an integer number (11044749).

Almost surely, 2^22089497 is an apocalyptic number.

It is an amenable number.

22089497 is a deficient number, since it is larger than the sum of its proper divisors (1).

22089497 is an equidigital number, since it uses as much as digits as its factorization.

22089497 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 22089497 is about 4699.9464890571. The cubic root of 22089497 is about 280.5833797730.

The spelling of 22089497 in words is "twenty-two million, eighty-nine thousand, four hundred ninety-seven".