13829321 has 8 divisors (see below), whose sum is σ = 15880800. Its totient is φ = 11910240.

The previous prime is 13829311. The next prime is 13829323. The reversal of 13829321 is 12392831.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13829321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13829323) 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, 32876 + ... + 33293.

It is an arithmetic number, because the mean of its divisors is an integer number (1985100).

Almost surely, 2^13829321 is an apocalyptic number.

13829321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13829321 is a deficient number, since it is larger than the sum of its proper divisors (2051479).

13829321 is a wasteful number, since it uses less digits than its factorization.

13829321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66199.

The product of its digits is 2592, while the sum is 29.

The square root of 13829321 is about 3718.7795040846. The cubic root of 13829321 is about 240.0307888741.

The spelling of 13829321 in words is "thirteen million, eight hundred twenty-nine thousand, three hundred twenty-one".