12803863 has 2 divisors, whose sum is σ = 12803864. Its totient is φ = 12803862.

The previous prime is 12803851. The next prime is 12803867. The reversal of 12803863 is 36830821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12803863 - 2²¹ = 10706711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12803867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6401931 + 6401932.

It is an arithmetic number, because the mean of its divisors is an integer number (6401932).

Almost surely, 2^12803863 is an apocalyptic number.

12803863 is a deficient number, since it is larger than the sum of its proper divisors (1).

12803863 is an equidigital number, since it uses as much as digits as its factorization.

12803863 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 12803863 is about 3578.2485939353. The cubic root of 12803863 is about 233.9449489412.

The spelling of 12803863 in words is "twelve million, eight hundred three thousand, eight hundred sixty-three".