838013863 has 2 divisors, whose sum is σ = 838013864. Its totient is φ = 838013862.

The previous prime is 838013843. The next prime is 838013873. The reversal of 838013863 is 368310838.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-838013863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838013833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419006931 + 419006932.

It is an arithmetic number, because the mean of its divisors is an integer number (419006932).

Almost surely, 2^838013863 is an apocalyptic number.

838013863 is a deficient number, since it is larger than the sum of its proper divisors (1).

838013863 is an equidigital number, since it uses as much as digits as its factorization.

838013863 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 40.

The square root of 838013863 is about 28948.4690959643. The cubic root of 838013863 is about 942.7945594573.

The spelling of 838013863 in words is "eight hundred thirty-eight million, thirteen thousand, eight hundred sixty-three".