13889317 has 4 divisors (see below), whose sum is σ = 14957740. Its totient is φ = 12820896.

The previous prime is 13889279. The next prime is 13889321. The reversal of 13889317 is 71398831.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2268036 + 11621281 = 1506^2 + 3409^2 .

It is a cyclic number.

It is not a de Polignac number, because 13889317 - 2⁷ = 13889189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13889317.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13889327) 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, 534192 + ... + 534217.

It is an arithmetic number, because the mean of its divisors is an integer number (3739435).

Almost surely, 2^13889317 is an apocalyptic number.

It is an amenable number.

13889317 is a deficient number, since it is larger than the sum of its proper divisors (1068423).

13889317 is a wasteful number, since it uses less digits than its factorization.

13889317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1068422.

The product of its digits is 36288, while the sum is 40.

The square root of 13889317 is about 3726.8373991898. The cubic root of 13889317 is about 240.3773981315.

The spelling of 13889317 in words is "thirteen million, eight hundred eighty-nine thousand, three hundred seventeen".