22366889 has 2 divisors, whose sum is σ = 22366890. Its totient is φ = 22366888.

The previous prime is 22366873. The next prime is 22366891. The reversal of 22366889 is 98866322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12075625 + 10291264 = 3475^2 + 3208^2 .

It is a cyclic number.

It is not a de Polignac number, because 22366889 - 2⁴ = 22366873 is a prime.

It is a Sophie Germain prime.

Together with 22366891, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (22366829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11183444 + 11183445.

It is an arithmetic number, because the mean of its divisors is an integer number (11183445).

Almost surely, 2^22366889 is an apocalyptic number.

It is an amenable number.

22366889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22366889 is an equidigital number, since it uses as much as digits as its factorization.

22366889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 44.

The square root of 22366889 is about 4729.3645450525. The cubic root of 22366889 is about 281.7529860824.

The spelling of 22366889 in words is "twenty-two million, three hundred sixty-six thousand, eight hundred eighty-nine".