13856873 has 4 divisors (see below), whose sum is σ = 14063760. Its totient is φ = 13649988.

The previous prime is 13856863. The next prime is 13856881. The reversal of 13856873 is 37865831.

13856873 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, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13856873 - 2⁸ = 13856617 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13856873.

It is not an unprimeable number, because it can be changed into a prime (13856863) 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, 103343 + ... + 103476.

It is an arithmetic number, because the mean of its divisors is an integer number (3515940).

Almost surely, 2^13856873 is an apocalyptic number.

It is an amenable number.

13856873 is a deficient number, since it is larger than the sum of its proper divisors (206887).

13856873 is an equidigital number, since it uses as much as digits as its factorization.

13856873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206886.

The product of its digits is 120960, while the sum is 41.

The square root of 13856873 is about 3722.4821020389. The cubic root of 13856873 is about 240.1900866748.

The spelling of 13856873 in words is "thirteen million, eight hundred fifty-six thousand, eight hundred seventy-three".