12248779 has 2 divisors, whose sum is σ = 12248780. Its totient is φ = 12248778.

The previous prime is 12248767. The next prime is 12248783. The reversal of 12248779 is 97784221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12248779 - 2⁷ = 12248651 is a prime.

It is not a weakly prime, because it can be changed into another prime (12248729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6124389 + 6124390.

It is an arithmetic number, because the mean of its divisors is an integer number (6124390).

Almost surely, 2^12248779 is an apocalyptic number.

12248779 is a deficient number, since it is larger than the sum of its proper divisors (1).

12248779 is an equidigital number, since it uses as much as digits as its factorization.

12248779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 56448, while the sum is 40.

The square root of 12248779 is about 3499.8255670819. The cubic root of 12248779 is about 230.5141553788.

The spelling of 12248779 in words is "twelve million, two hundred forty-eight thousand, seven hundred seventy-nine".