12884279 has 2 divisors, whose sum is σ = 12884280. Its totient is φ = 12884278.

The previous prime is 12884233. The next prime is 12884309. The reversal of 12884279 is 97248821.

12884279 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12884279 - 2¹² = 12880183 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 (12884779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6442139 + 6442140.

It is an arithmetic number, because the mean of its divisors is an integer number (6442140).

Almost surely, 2^12884279 is an apocalyptic number.

12884279 is a deficient number, since it is larger than the sum of its proper divisors (1).

12884279 is an equidigital number, since it uses as much as digits as its factorization.

12884279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 41.

The square root of 12884279 is about 3589.4677878482. The cubic root of 12884279 is about 234.4336990517.

The spelling of 12884279 in words is "twelve million, eight hundred eighty-four thousand, two hundred seventy-nine".