13687774 has 8 divisors (see below), whose sum is σ = 20547648. Its totient is φ = 6838560.

The previous prime is 13687741. The next prime is 13687787. The reversal of 13687774 is 47778631.

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

It is a super-3 number, since 3×13687774³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13687774.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2739 + ... + 5905.

It is an arithmetic number, because the mean of its divisors is an integer number (2568456).

Almost surely, 2^13687774 is an apocalyptic number.

13687774 is a deficient number, since it is larger than the sum of its proper divisors (6859874).

13687774 is a wasteful number, since it uses less digits than its factorization.

13687774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330.

The product of its digits is 197568, while the sum is 43.

The square root of 13687774 is about 3699.6991769602. The cubic root of 13687774 is about 239.2090512900.

The spelling of 13687774 in words is "thirteen million, six hundred eighty-seven thousand, seven hundred seventy-four".