13089889 has 2 divisors, whose sum is σ = 13089890. Its totient is φ = 13089888.

The previous prime is 13089863. The next prime is 13089893. The reversal of 13089889 is 98898031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10131489 + 2958400 = 3183^2 + 1720^2 .

It is a cyclic number.

It is not a de Polignac number, because 13089889 - 2⁷ = 13089761 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13039889) 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, 6544944 + 6544945.

It is an arithmetic number, because the mean of its divisors is an integer number (6544945).

Almost surely, 2^13089889 is an apocalyptic number.

It is an amenable number.

13089889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13089889 is an equidigital number, since it uses as much as digits as its factorization.

13089889 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 13089889 is about 3617.9951630703. The cubic root of 13089889 is about 235.6741709163.

The spelling of 13089889 in words is "thirteen million, eighty-nine thousand, eight hundred eighty-nine".