12982321 has 8 divisors (see below), whose sum is σ = 14275584. Its totient is φ = 11707920.

The previous prime is 12982309. The next prime is 12982331. The reversal of 12982321 is 12328921.

12982321 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 12982321 - 2¹¹ = 12980273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12982321.

It is not an unprimeable number, because it can be changed into a prime (12982331) 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, 3250 + ... + 6043.

It is an arithmetic number, because the mean of its divisors is an integer number (1784448).

Almost surely, 2^12982321 is an apocalyptic number.

12982321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12982321 is a deficient number, since it is larger than the sum of its proper divisors (1293263).

12982321 is a wasteful number, since it uses less digits than its factorization.

12982321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9431.

The product of its digits is 1728, while the sum is 28.

The square root of 12982321 is about 3603.0988051953. The cubic root of 12982321 is about 235.0268326084.

The spelling of 12982321 in words is "twelve million, nine hundred eighty-two thousand, three hundred twenty-one".