13860321 has 8 divisors (see below), whose sum is σ = 19567584. Its totient is φ = 8696640.

The previous prime is 13860299. The next prime is 13860323. The reversal of 13860321 is 12306831.

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

It is not a de Polignac number, because 13860321 - 2⁶ = 13860257 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13860291 and 13860300.

It is not an unprimeable number, because it can be changed into a prime (13860323) 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, 135835 + ... + 135936.

It is an arithmetic number, because the mean of its divisors is an integer number (2445948).

Almost surely, 2^13860321 is an apocalyptic number.

It is an amenable number.

13860321 is a deficient number, since it is larger than the sum of its proper divisors (5707263).

13860321 is a wasteful number, since it uses less digits than its factorization.

13860321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271791.

The product of its (nonzero) digits is 864, while the sum is 24.

The square root of 13860321 is about 3722.9452050762. The cubic root of 13860321 is about 240.2100071561.

The spelling of 13860321 in words is "thirteen million, eight hundred sixty thousand, three hundred twenty-one".