13686369 has 8 divisors (see below), whose sum is σ = 18289440. Its totient is φ = 9103776.

The previous prime is 13686359. The next prime is 13686371. The reversal of 13686369 is 96368631.

13686369 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13686369 - 2¹³ = 13678177 is a prime.

It is a super-2 number, since 2×13686369² = 374633392808322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13686369.

It is not an unprimeable number, because it can be changed into a prime (13686319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3484 + ... + 6285.

It is an arithmetic number, because the mean of its divisors is an integer number (2286180).

Almost surely, 2^13686369 is an apocalyptic number.

It is an amenable number.

13686369 is a deficient number, since it is larger than the sum of its proper divisors (4603071).

13686369 is an equidigital number, since it uses as much as digits as its factorization.

13686369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10239.

The product of its digits is 139968, while the sum is 42.

The square root of 13686369 is about 3699.5092917845. The cubic root of 13686369 is about 239.2008663649.

The spelling of 13686369 in words is "thirteen million, six hundred eighty-six thousand, three hundred sixty-nine".