13498889 has 2 divisors, whose sum is σ = 13498890. Its totient is φ = 13498888.

The previous prime is 13498879. The next prime is 13498909. The reversal of 13498889 is 98889431.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11002489 + 2496400 = 3317^2 + 1580^2 .

It is an emirp because it is prime and its reverse (98889431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13498889 - 2¹⁶ = 13433353 is a prime.

It is not a weakly prime, because it can be changed into another prime (13498829) 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, 6749444 + 6749445.

It is an arithmetic number, because the mean of its divisors is an integer number (6749445).

Almost surely, 2^13498889 is an apocalyptic number.

It is an amenable number.

13498889 is a deficient number, since it is larger than the sum of its proper divisors (1).

13498889 is an equidigital number, since it uses as much as digits as its factorization.

13498889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 497664, while the sum is 50.

The square root of 13498889 is about 3674.0834231139. The cubic root of 13498889 is about 238.1036257547.

The spelling of 13498889 in words is "thirteen million, four hundred ninety-eight thousand, eight hundred eighty-nine".