13289999 has 2 divisors, whose sum is σ = 13290000. Its totient is φ = 13289998.

The previous prime is 13289989. The next prime is 13290001. The reversal of 13289999 is 99998231.

13289999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (99998231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13289999 - 2¹² = 13285903 is a prime.

It is a Sophie Germain prime.

Together with 13290001, it forms a pair of twin primes.

It is a Chen prime.

13289999 is a modest number, since divided by 9999 gives 1328 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13289989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6644999 + 6645000.

It is an arithmetic number, because the mean of its divisors is an integer number (6645000).

Almost surely, 2^13289999 is an apocalyptic number.

13289999 is a deficient number, since it is larger than the sum of its proper divisors (1).

13289999 is an equidigital number, since it uses as much as digits as its factorization.

13289999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 314928, while the sum is 50.

The square root of 13289999 is about 3645.5450895579. The cubic root of 13289999 is about 236.8690488221.

The spelling of 13289999 in words is "thirteen million, two hundred eighty-nine thousand, nine hundred ninety-nine".