22899889 has 2 divisors, whose sum is σ = 22899890. Its totient is φ = 22899888.

The previous prime is 22899859. The next prime is 22899893. The reversal of 22899889 is 98899822.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13749264 + 9150625 = 3708^2 + 3025^2 .

It is a cyclic number.

It is not a de Polignac number, because 22899889 - 2⁹ = 22899377 is a prime.

It is not a weakly prime, because it can be changed into another prime (22899839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11449944 + 11449945.

It is an arithmetic number, because the mean of its divisors is an integer number (11449945).

Almost surely, 2^22899889 is an apocalyptic number.

It is an amenable number.

22899889 is a deficient number, since it is larger than the sum of its proper divisors (1).

22899889 is an equidigital number, since it uses as much as digits as its factorization.

22899889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1492992, while the sum is 55.

The square root of 22899889 is about 4785.3828477981. The cubic root of 22899889 is about 283.9734857546.

The spelling of 22899889 in words is "twenty-two million, eight hundred ninety-nine thousand, eight hundred eighty-nine".