22007173 has 2 divisors, whose sum is σ = 22007174. Its totient is φ = 22007172.

The previous prime is 22007123. The next prime is 22007203. The reversal of 22007173 is 37170022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21967969 + 39204 = 4687^2 + 198^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22007173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22007123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11003586 + 11003587.

It is an arithmetic number, because the mean of its divisors is an integer number (11003587).

Almost surely, 2^22007173 is an apocalyptic number.

It is an amenable number.

22007173 is a deficient number, since it is larger than the sum of its proper divisors (1).

22007173 is an equidigital number, since it uses as much as digits as its factorization.

22007173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 22007173 is about 4691.1803418756. The cubic root of 22007173 is about 280.2343828294.

Adding to 22007173 its reverse (37170022), we get a palindrome (59177195).

The spelling of 22007173 in words is "twenty-two million, seven thousand, one hundred seventy-three".