12886771 has 2 divisors, whose sum is σ = 12886772. Its totient is φ = 12886770.

The previous prime is 12886733. The next prime is 12886781. The reversal of 12886771 is 17768821.

12886771 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 a de Polignac number, because none of the positive numbers 2^k-12886771 is a prime.

It is not a weakly prime, because it can be changed into another prime (12886711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6443385 + 6443386.

It is an arithmetic number, because the mean of its divisors is an integer number (6443386).

Almost surely, 2^12886771 is an apocalyptic number.

12886771 is a deficient number, since it is larger than the sum of its proper divisors (1).

12886771 is an equidigital number, since it uses as much as digits as its factorization.

12886771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 37632, while the sum is 40.

The square root of 12886771 is about 3589.8148977350. The cubic root of 12886771 is about 234.4488123309.

The spelling of 12886771 in words is "twelve million, eight hundred eighty-six thousand, seven hundred seventy-one".