12888971 has 2 divisors, whose sum is σ = 12888972. Its totient is φ = 12888970.

The previous prime is 12888943. The next prime is 12888977. The reversal of 12888971 is 17988821.

12888971 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 an emirp because it is prime and its reverse (17988821) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12888971 is a prime.

It is a super-2 number, since 2×12888971² = 332251146877682, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12888977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6444485 + 6444486.

It is an arithmetic number, because the mean of its divisors is an integer number (6444486).

Almost surely, 2^12888971 is an apocalyptic number.

12888971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12888971 is an equidigital number, since it uses as much as digits as its factorization.

12888971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 44.

The square root of 12888971 is about 3590.1213071427. The cubic root of 12888971 is about 234.4621530930.

The spelling of 12888971 in words is "twelve million, eight hundred eighty-eight thousand, nine hundred seventy-one".