12869971 has 2 divisors, whose sum is σ = 12869972. Its totient is φ = 12869970.

The previous prime is 12869951. The next prime is 12869981. The reversal of 12869971 is 17996821.

It is a strong prime.

It is an emirp because it is prime and its reverse (17996821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12869971 - 2¹⁵ = 12837203 is a prime.

It is not a weakly prime, because it can be changed into another prime (12869951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6434985 + 6434986.

It is an arithmetic number, because the mean of its divisors is an integer number (6434986).

Almost surely, 2^12869971 is an apocalyptic number.

12869971 is a deficient number, since it is larger than the sum of its proper divisors (1).

12869971 is an equidigital number, since it uses as much as digits as its factorization.

12869971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 43.

The square root of 12869971 is about 3587.4741810918. The cubic root of 12869971 is about 234.3468873185.

The spelling of 12869971 in words is "twelve million, eight hundred sixty-nine thousand, nine hundred seventy-one".