22972693 has 2 divisors, whose sum is σ = 22972694. Its totient is φ = 22972692.

The previous prime is 22972667. The next prime is 22972717. The reversal of 22972693 is 39627922.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12687844 + 10284849 = 3562^2 + 3207^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22972693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22972093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11486346 + 11486347.

It is an arithmetic number, because the mean of its divisors is an integer number (11486347).

Almost surely, 2^22972693 is an apocalyptic number.

It is an amenable number.

22972693 is a deficient number, since it is larger than the sum of its proper divisors (1).

22972693 is an equidigital number, since it uses as much as digits as its factorization.

22972693 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81648, while the sum is 40.

The square root of 22972693 is about 4792.9837262398. The cubic root of 22972693 is about 284.2741063487.

The spelling of 22972693 in words is "twenty-two million, nine hundred seventy-two thousand, six hundred ninety-three".