13854721 has 8 divisors (see below), whose sum is σ = 14374080. Its totient is φ = 13338192.

The previous prime is 13854683. The next prime is 13854733. The reversal of 13854721 is 12745831.

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 13854721 - 2⁷ = 13854593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13854791) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18276 + ... + 19018.

It is an arithmetic number, because the mean of its divisors is an integer number (1796760).

Almost surely, 2^13854721 is an apocalyptic number.

It is an amenable number.

13854721 is a deficient number, since it is larger than the sum of its proper divisors (519359).

13854721 is an equidigital number, since it uses as much as digits as its factorization.

13854721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1415.

The product of its digits is 6720, while the sum is 31.

The square root of 13854721 is about 3722.1930363698. The cubic root of 13854721 is about 240.1776520314.

The spelling of 13854721 in words is "thirteen million, eight hundred fifty-four thousand, seven hundred twenty-one".