13709686 has 8 divisors (see below), whose sum is σ = 20584080. Its totient is φ = 6848328.

The previous prime is 13709681. The next prime is 13709687. The reversal of 13709686 is 68690731.

13709686 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 congruent number.

It is not an unprimeable number, because it can be changed into a prime (13709681) 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, 40 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (2573010).

Almost surely, 2^13709686 is an apocalyptic number.

13709686 is a deficient number, since it is larger than the sum of its proper divisors (6874394).

13709686 is a wasteful number, since it uses less digits than its factorization.

13709686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6518.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 13709686 is about 3702.6593146008. The cubic root of 13709686 is about 239.3366287483.

The spelling of 13709686 in words is "thirteen million, seven hundred nine thousand, six hundred eighty-six".