22696537 has 2 divisors, whose sum is σ = 22696538. Its totient is φ = 22696536.

The previous prime is 22696511. The next prime is 22696559. The reversal of 22696537 is 73569622.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22695696 + 841 = 4764^2 + 29^2 .

It is a cyclic number.

It is not a de Polignac number, because 22696537 - 2⁷ = 22696409 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22696537.

It is not a weakly prime, because it can be changed into another prime (22690537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11348268 + 11348269.

It is an arithmetic number, because the mean of its divisors is an integer number (11348269).

Almost surely, 2^22696537 is an apocalyptic number.

It is an amenable number.

22696537 is a deficient number, since it is larger than the sum of its proper divisors (1).

22696537 is an equidigital number, since it uses as much as digits as its factorization.

22696537 is an evil number, because the sum of its binary digits is even.

The product of its digits is 136080, while the sum is 40.

The square root of 22696537 is about 4764.0882653452. The cubic root of 22696537 is about 283.1304197284.

The spelling of 22696537 in words is "twenty-two million, six hundred ninety-six thousand, five hundred thirty-seven".