13876321 has 4 divisors (see below), whose sum is σ = 13898944. Its totient is φ = 13853700.

The previous prime is 13876309. The next prime is 13876349. The reversal of 13876321 is 12367831.

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 a de Polignac number, because none of the positive numbers 2^k-13876321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13876361) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10365 + ... + 11626.

It is an arithmetic number, because the mean of its divisors is an integer number (3474736).

Almost surely, 2^13876321 is an apocalyptic number.

It is an amenable number.

13876321 is a deficient number, since it is larger than the sum of its proper divisors (22623).

13876321 is an equidigital number, since it uses as much as digits as its factorization.

13876321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22622.

The product of its digits is 6048, while the sum is 31.

The square root of 13876321 is about 3725.0934216473. The cubic root of 13876321 is about 240.3024023748.

The spelling of 13876321 in words is "thirteen million, eight hundred seventy-six thousand, three hundred twenty-one".