12944779 has 2 divisors, whose sum is σ = 12944780. Its totient is φ = 12944778.

The previous prime is 12944761. The next prime is 12944797. The reversal of 12944779 is 97744921.

Together with next prime (12944797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a balanced prime because it is at equal distance from previous prime (12944761) and next prime (12944797).

It is an emirp because it is prime and its reverse (97744921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12944779 - 2⁷ = 12944651 is a prime.

It is not a weakly prime, because it can be changed into another prime (12954779) 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 as a sum of consecutive naturals, namely, 6472389 + 6472390.

It is an arithmetic number, because the mean of its divisors is an integer number (6472390).

Almost surely, 2^12944779 is an apocalyptic number.

12944779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12944779 is an equidigital number, since it uses as much as digits as its factorization.

12944779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 43.

The square root of 12944779 is about 3597.8853511473. The cubic root of 12944779 is about 234.8000653473.

The spelling of 12944779 in words is "twelve million, nine hundred forty-four thousand, seven hundred seventy-nine".