12871877 has 2 divisors, whose sum is σ = 12871878. Its totient is φ = 12871876.

The previous prime is 12871849. The next prime is 12871891. The reversal of 12871877 is 77817821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11792356 + 1079521 = 3434^2 + 1039^2 .

It is an emirp because it is prime and its reverse (77817821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12871877 - 2¹² = 12867781 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 (12871777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6435938 + 6435939.

It is an arithmetic number, because the mean of its divisors is an integer number (6435939).

Almost surely, 2^12871877 is an apocalyptic number.

It is an amenable number.

12871877 is a deficient number, since it is larger than the sum of its proper divisors (1).

12871877 is an equidigital number, since it uses as much as digits as its factorization.

12871877 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43904, while the sum is 41.

The square root of 12871877 is about 3587.7398177683. The cubic root of 12871877 is about 234.3584554129.

The spelling of 12871877 in words is "twelve million, eight hundred seventy-one thousand, eight hundred seventy-seven".