13686774 has 16 divisors (see below), whose sum is σ = 27572160. Its totient is φ = 4529160.

The previous prime is 13686769. The next prime is 13686787. The reversal of 13686774 is 47768631.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7372 + ... + 9039.

It is an arithmetic number, because the mean of its divisors is an integer number (1723260).

Almost surely, 2^13686774 is an apocalyptic number.

13686774 is an abundant number, since it is smaller than the sum of its proper divisors (13885386).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13686774 is a wasteful number, since it uses less digits than its factorization.

13686774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16555.

The product of its digits is 169344, while the sum is 42.

The square root of 13686774 is about 3699.5640283687. The cubic root of 13686774 is about 239.2032257780.

The spelling of 13686774 in words is "thirteen million, six hundred eighty-six thousand, seven hundred seventy-four".