12806873 has 2 divisors, whose sum is σ = 12806874. Its totient is φ = 12806872.

The previous prime is 12806863. The next prime is 12806881. The reversal of 12806873 is 37860821.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6416089 + 6390784 = 2533^2 + 2528^2 .

It is a cyclic number.

It is not a de Polignac number, because 12806873 - 2⁸ = 12806617 is a prime.

It is not a weakly prime, because it can be changed into another prime (12806863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403436 + 6403437.

It is an arithmetic number, because the mean of its divisors is an integer number (6403437).

Almost surely, 2^12806873 is an apocalyptic number.

It is an amenable number.

12806873 is a deficient number, since it is larger than the sum of its proper divisors (1).

12806873 is an equidigital number, since it uses as much as digits as its factorization.

12806873 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 12806873 is about 3578.6691660448. The cubic root of 12806873 is about 233.9632798445.

The spelling of 12806873 in words is "twelve million, eight hundred six thousand, eight hundred seventy-three".