12983321 has 4 divisors (see below), whose sum is σ = 13982052. Its totient is φ = 11984592.

The previous prime is 12983309. The next prime is 12983351. The reversal of 12983321 is 12338921.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1177225 + 11806096 = 1085^2 + 3436^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12983321 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12983351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 499346 + ... + 499371.

It is an arithmetic number, because the mean of its divisors is an integer number (3495513).

Almost surely, 2^12983321 is an apocalyptic number.

It is an amenable number.

12983321 is a deficient number, since it is larger than the sum of its proper divisors (998731).

12983321 is an equidigital number, since it uses as much as digits as its factorization.

12983321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 998730.

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

The square root of 12983321 is about 3603.2375719622. The cubic root of 12983321 is about 235.0328669890.

The spelling of 12983321 in words is "twelve million, nine hundred eighty-three thousand, three hundred twenty-one".