13305686 has 8 divisors (see below), whose sum is σ = 20285904. Its totient is φ = 6543720.

The previous prime is 13305673. The next prime is 13305697. The reversal of 13305686 is 68650331.

13305686 is digitally balanced in base 2, 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 a Curzon number.

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, 54410 + ... + 54653.

It is an arithmetic number, because the mean of its divisors is an integer number (2535738).

Almost surely, 2^13305686 is an apocalyptic number.

13305686 is a deficient number, since it is larger than the sum of its proper divisors (6980218).

13305686 is a wasteful number, since it uses less digits than its factorization.

13305686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109126.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 13305686 is about 3647.6959851391. The cubic root of 13305686 is about 236.9622091939.

The spelling of 13305686 in words is "thirteen million, three hundred five thousand, six hundred eighty-six".