13805086 has 4 divisors (see below), whose sum is σ = 20707632. Its totient is φ = 6902542.

The previous prime is 13805059. The next prime is 13805087. The reversal of 13805086 is 68050831.

13805086 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13805087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3451270 + ... + 3451273.

It is an arithmetic number, because the mean of its divisors is an integer number (5176908).

Almost surely, 2^13805086 is an apocalyptic number.

13805086 is a deficient number, since it is larger than the sum of its proper divisors (6902546).

13805086 is an equidigital number, since it uses as much as digits as its factorization.

13805086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6902545.

The product of its (nonzero) digits is 5760, while the sum is 31.

The square root of 13805086 is about 3715.5196137283. The cubic root of 13805086 is about 239.8904940243.

The spelling of 13805086 in words is "thirteen million, eight hundred five thousand, eighty-six".