13969289 has 2 divisors, whose sum is σ = 13969290. Its totient is φ = 13969288.

The previous prime is 13969247. The next prime is 13969297. The reversal of 13969289 is 98296931.

13969289 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 can be written as a sum of positive squares in only one way, i.e., 8526400 + 5442889 = 2920^2 + 2333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13969289 is a prime.

It is not a weakly prime, because it can be changed into another prime (13968289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6984644 + 6984645.

It is an arithmetic number, because the mean of its divisors is an integer number (6984645).

Almost surely, 2^13969289 is an apocalyptic number.

It is an amenable number.

13969289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13969289 is an equidigital number, since it uses as much as digits as its factorization.

13969289 is an evil number, because the sum of its binary digits is even.

The product of its digits is 209952, while the sum is 47.

The square root of 13969289 is about 3737.5512036626. The cubic root of 13969289 is about 240.8378643507.

The spelling of 13969289 in words is "thirteen million, nine hundred sixty-nine thousand, two hundred eighty-nine".