12879247 has 2 divisors, whose sum is σ = 12879248. Its totient is φ = 12879246.

The previous prime is 12879239. The next prime is 12879253. The reversal of 12879247 is 74297821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12879247 - 2³ = 12879239 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12879257) 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, 6439623 + 6439624.

It is an arithmetic number, because the mean of its divisors is an integer number (6439624).

Almost surely, 2^12879247 is an apocalyptic number.

12879247 is a deficient number, since it is larger than the sum of its proper divisors (1).

12879247 is an equidigital number, since it uses as much as digits as its factorization.

12879247 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 12879247 is about 3588.7667798284. The cubic root of 12879247 is about 234.4031754453.

The spelling of 12879247 in words is "twelve million, eight hundred seventy-nine thousand, two hundred forty-seven".