22072597 has 2 divisors, whose sum is σ = 22072598. Its totient is φ = 22072596.

The previous prime is 22072573. The next prime is 22072601. The reversal of 22072597 is 79527022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20875761 + 1196836 = 4569^2 + 1094^2 .

It is a cyclic number.

It is not a de Polignac number, because 22072597 - 2¹¹ = 22070549 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22072517) 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, 11036298 + 11036299.

It is an arithmetic number, because the mean of its divisors is an integer number (11036299).

Almost surely, 2^22072597 is an apocalyptic number.

It is an amenable number.

22072597 is a deficient number, since it is larger than the sum of its proper divisors (1).

22072597 is an equidigital number, since it uses as much as digits as its factorization.

22072597 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 22072597 is about 4698.1482522373. The cubic root of 22072597 is about 280.5118062568.

The spelling of 22072597 in words is "twenty-two million, seventy-two thousand, five hundred ninety-seven".