12444739 has 2 divisors, whose sum is σ = 12444740. Its totient is φ = 12444738.

The previous prime is 12444737. The next prime is 12444743. The reversal of 12444739 is 93744421.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12444739 - 2¹ = 12444737 is a prime.

Together with 12444737, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12444737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222369 + 6222370.

It is an arithmetic number, because the mean of its divisors is an integer number (6222370).

Almost surely, 2^12444739 is an apocalyptic number.

12444739 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444739 is an equidigital number, since it uses as much as digits as its factorization.

12444739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 24192, while the sum is 34.

The square root of 12444739 is about 3527.7101638315. The cubic root of 12444739 is about 231.7369380071.

The spelling of 12444739 in words is "twelve million, four hundred forty-four thousand, seven hundred thirty-nine".