12984319 has 4 divisors (see below), whose sum is σ = 13403200. Its totient is φ = 12565440.

The previous prime is 12984289. The next prime is 12984329. The reversal of 12984319 is 91348921.

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

It is a cyclic number.

It is not a de Polignac number, because 12984319 - 2⁵ = 12984287 is a prime.

It is a super-2 number, since 2×12984319² = 337185079787522, which contains 22 as substring.

It is a Duffinian number.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12984329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209394 + ... + 209455.

It is an arithmetic number, because the mean of its divisors is an integer number (3350800).

Almost surely, 2^12984319 is an apocalyptic number.

12984319 is a deficient number, since it is larger than the sum of its proper divisors (418881).

12984319 is an equidigital number, since it uses as much as digits as its factorization.

12984319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418880.

The product of its digits is 15552, while the sum is 37.

The square root of 12984319 is about 3603.3760558676. The cubic root of 12984319 is about 235.0388889919.

It can be divided in two parts, 129 and 84319, that added together give a palindrome (84448).

The spelling of 12984319 in words is "twelve million, nine hundred eighty-four thousand, three hundred nineteen".