12806903 has 2 divisors, whose sum is σ = 12806904. Its totient is φ = 12806902.

The previous prime is 12806891. The next prime is 12806923. The reversal of 12806903 is 30960821.

It is a weak prime.

It is an emirp because it is prime and its reverse (30960821) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12806903 - 2⁴ = 12806887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12806923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6403451 + 6403452.

It is an arithmetic number, because the mean of its divisors is an integer number (6403452).

Almost surely, 2^12806903 is an apocalyptic number.

12806903 is a deficient number, since it is larger than the sum of its proper divisors (1).

12806903 is an equidigital number, since it uses as much as digits as its factorization.

12806903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 12806903 is about 3578.6733575447. The cubic root of 12806903 is about 233.9634625301.

The spelling of 12806903 in words is "twelve million, eight hundred six thousand, nine hundred three".