13696889 has 4 divisors (see below), whose sum is σ = 13708020. Its totient is φ = 13685760.

The previous prime is 13696873. The next prime is 13696931. The reversal of 13696889 is 98869631.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 250000 + 13446889 = 500^2 + 3667^2 .

It is a cyclic number.

It is not a de Polignac number, because 13696889 - 2⁴ = 13696873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13696289) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3452 + ... + 6269.

It is an arithmetic number, because the mean of its divisors is an integer number (3427005).

Almost surely, 2^13696889 is an apocalyptic number.

It is an amenable number.

13696889 is a deficient number, since it is larger than the sum of its proper divisors (11131).

13696889 is an equidigital number, since it uses as much as digits as its factorization.

13696889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11130.

The product of its digits is 559872, while the sum is 50.

The square root of 13696889 is about 3700.9308288591. The cubic root of 13696889 is about 239.2621377571.

It can be divided in two parts, 1369 and 6889, that multiplied together give a square (9431041 = 3071²).

The spelling of 13696889 in words is "thirteen million, six hundred ninety-six thousand, eight hundred eighty-nine".