22080917 has 2 divisors, whose sum is σ = 22080918. Its totient is φ = 22080916.

The previous prime is 22080911. The next prime is 22080931. The reversal of 22080917 is 71908022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21659716 + 421201 = 4654^2 + 649^2 .

It is a cyclic number.

It is not a de Polignac number, because 22080917 - 2⁴ = 22080901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22080917.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22080911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11040458 + 11040459.

It is an arithmetic number, because the mean of its divisors is an integer number (11040459).

Almost surely, 2^22080917 is an apocalyptic number.

It is an amenable number.

22080917 is a deficient number, since it is larger than the sum of its proper divisors (1).

22080917 is an equidigital number, since it uses as much as digits as its factorization.

22080917 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 22080917 is about 4699.0336240551. The cubic root of 22080917 is about 280.5470470133.

Adding to 22080917 its reverse (71908022), we get a palindrome (93988939).

The spelling of 22080917 in words is "twenty-two million, eighty thousand, nine hundred seventeen".