12886321 has 8 divisors (see below), whose sum is σ = 14783744. Its totient is φ = 11003040.

The previous prime is 12886301. The next prime is 12886327. The reversal of 12886321 is 12368821.

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 12886321 - 2¹⁵ = 12853553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12886327) 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, 1500 + ... + 5293.

It is an arithmetic number, because the mean of its divisors is an integer number (1847968).

Almost surely, 2^12886321 is an apocalyptic number.

It is an amenable number.

12886321 is a deficient number, since it is larger than the sum of its proper divisors (1897423).

12886321 is an equidigital number, since it uses as much as digits as its factorization.

12886321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7071.

The product of its digits is 4608, while the sum is 31.

The square root of 12886321 is about 3589.7522198614. The cubic root of 12886321 is about 234.4460833516.

The spelling of 12886321 in words is "twelve million, eight hundred eighty-six thousand, three hundred twenty-one".