12984871 has 2 divisors, whose sum is σ = 12984872. Its totient is φ = 12984870.

The previous prime is 12984869. The next prime is 12984893. The reversal of 12984871 is 17848921.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (17848921) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12984871 - 2¹ = 12984869 is a prime.

Together with 12984869, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12984571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6492435 + 6492436.

It is an arithmetic number, because the mean of its divisors is an integer number (6492436).

Almost surely, 2^12984871 is an apocalyptic number.

12984871 is a deficient number, since it is larger than the sum of its proper divisors (1).

12984871 is an equidigital number, since it uses as much as digits as its factorization.

12984871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 40.

The square root of 12984871 is about 3603.4526498901. The cubic root of 12984871 is about 235.0422196666.

The spelling of 12984871 in words is "twelve million, nine hundred eighty-four thousand, eight hundred seventy-one".