13085686 has 4 divisors (see below), whose sum is σ = 19628532. Its totient is φ = 6542842.

The previous prime is 13085671. The next prime is 13085687. The reversal of 13085686 is 68658031.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13085687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3271420 + ... + 3271423.

It is an arithmetic number, because the mean of its divisors is an integer number (4907133).

Almost surely, 2^13085686 is an apocalyptic number.

13085686 is a deficient number, since it is larger than the sum of its proper divisors (6542846).

13085686 is an equidigital number, since it uses as much as digits as its factorization.

13085686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6542845.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 13085686 is about 3617.4142698895. The cubic root of 13085686 is about 235.6489442044.

The spelling of 13085686 in words is "thirteen million, eighty-five thousand, six hundred eighty-six".