13368889 has 2 divisors, whose sum is σ = 13368890. Its totient is φ = 13368888.

The previous prime is 13368853. The next prime is 13368899. The reversal of 13368889 is 98886331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11505664 + 1863225 = 3392^2 + 1365^2 .

It is a cyclic number.

It is not a de Polignac number, because 13368889 - 2¹⁷ = 13237817 is a prime.

It is a Chen prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (13368899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6684444 + 6684445.

It is an arithmetic number, because the mean of its divisors is an integer number (6684445).

Almost surely, 2^13368889 is an apocalyptic number.

It is an amenable number.

13368889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13368889 is an equidigital number, since it uses as much as digits as its factorization.

13368889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 46.

The square root of 13368889 is about 3656.3491354082. The cubic root of 13368889 is about 237.3368127374.

The spelling of 13368889 in words is "thirteen million, three hundred sixty-eight thousand, eight hundred eighty-nine".