22366637 has 2 divisors, whose sum is σ = 22366638. Its totient is φ = 22366636.

The previous prime is 22366621. The next prime is 22366657. The reversal of 22366637 is 73666322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14891881 + 7474756 = 3859^2 + 2734^2 .

It is a cyclic number.

It is not a de Polignac number, because 22366637 - 2⁴ = 22366621 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 22366597 and 22366606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22366657) 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, 11183318 + 11183319.

It is an arithmetic number, because the mean of its divisors is an integer number (11183319).

Almost surely, 2^22366637 is an apocalyptic number.

It is an amenable number.

22366637 is a deficient number, since it is larger than the sum of its proper divisors (1).

22366637 is an equidigital number, since it uses as much as digits as its factorization.

22366637 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 35.

The square root of 22366637 is about 4729.3379029205. The cubic root of 22366637 is about 281.7519279406.

The spelling of 22366637 in words is "twenty-two million, three hundred sixty-six thousand, six hundred thirty-seven".