844742863 has 2 divisors, whose sum is σ = 844742864. Its totient is φ = 844742862.

The previous prime is 844742807. The next prime is 844742881. The reversal of 844742863 is 368247448.

844742863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 844742863 - 2⁹ = 844742351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (844712863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422371431 + 422371432.

It is an arithmetic number, because the mean of its divisors is an integer number (422371432).

Almost surely, 2^844742863 is an apocalyptic number.

844742863 is a deficient number, since it is larger than the sum of its proper divisors (1).

844742863 is an equidigital number, since it uses as much as digits as its factorization.

844742863 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1032192, while the sum is 46.

The square root of 844742863 is about 29064.4604801121. The cubic root of 844742863 is about 945.3112877609.

The spelling of 844742863 in words is "eight hundred forty-four million, seven hundred forty-two thousand, eight hundred sixty-three".