12744329 has 8 divisors (see below), whose sum is σ = 13770120. Its totient is φ = 11725056.

The previous prime is 12744289. The next prime is 12744331. The reversal of 12744329 is 92344721.

It can be written as a sum of positive squares in 4 ways, for example, as 1000000 + 11744329 = 1000^2 + 3427^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12744329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12744295 and 12744304.

It is not an unprimeable number, because it can be changed into a prime (12744349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2927 + ... + 5835.

It is an arithmetic number, because the mean of its divisors is an integer number (1721265).

Almost surely, 2^12744329 is an apocalyptic number.

It is an amenable number.

12744329 is a deficient number, since it is larger than the sum of its proper divisors (1025791).

12744329 is a wasteful number, since it uses less digits than its factorization.

12744329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3259.

The product of its digits is 12096, while the sum is 32.

The square root of 12744329 is about 3569.9200271155. The cubic root of 12744329 is about 233.5817949725.

The spelling of 12744329 in words is "twelve million, seven hundred forty-four thousand, three hundred twenty-nine".