13856855 has 8 divisors (see below), whose sum is σ = 16815600. Its totient is φ = 10960576.

The previous prime is 13856839. The next prime is 13856861. The reversal of 13856855 is 55865831.

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

It is a cyclic number.

It is not a de Polignac number, because 13856855 - 2⁴ = 13856839 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15125 + ... + 16014.

It is an arithmetic number, because the mean of its divisors is an integer number (2101950).

Almost surely, 2^13856855 is an apocalyptic number.

13856855 is a deficient number, since it is larger than the sum of its proper divisors (2958745).

13856855 is an equidigital number, since it uses as much as digits as its factorization.

13856855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31233.

The product of its digits is 144000, while the sum is 41.

The square root of 13856855 is about 3722.4796842965. The cubic root of 13856855 is about 240.1899826729.

The spelling of 13856855 in words is "thirteen million, eight hundred fifty-six thousand, eight hundred fifty-five".