13005686 has 8 divisors (see below), whose sum is σ = 19539144. Its totient is φ = 6492640.

The previous prime is 13005683. The next prime is 13005701. The reversal of 13005686 is 68650031.

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

It is a super-4 number, since 4×13005686⁴ (a number of 30 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13005683) 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, 3395 + ... + 6126.

It is an arithmetic number, because the mean of its divisors is an integer number (2442393).

Almost surely, 2^13005686 is an apocalyptic number.

13005686 is a deficient number, since it is larger than the sum of its proper divisors (6533458).

13005686 is an equidigital number, since it uses as much as digits as its factorization.

13005686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10206.

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 13005686 is about 3606.3396955916. The cubic root of 13005686 is about 235.1677450292.

The spelling of 13005686 in words is "thirteen million, five thousand, six hundred eighty-six".