9993794843 has 2 divisors, whose sum is σ = 9993794844. Its totient is φ = 9993794842.

The previous prime is 9993794809. The next prime is 9993794869. The reversal of 9993794843 is 3484973999.

It is a happy number.

9993794843 is digitally balanced in base 3, 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 9993794843 - 2⁶ = 9993794779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9993794843.

It is not a weakly prime, because it can be changed into another prime (9993794143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4996897421 + 4996897422.

It is an arithmetic number, because the mean of its divisors is an integer number (4996897422).

Almost surely, 2^9993794843 is an apocalyptic number.

9993794843 is a deficient number, since it is larger than the sum of its proper divisors (1).

9993794843 is an equidigital number, since it uses as much as digits as its factorization.

9993794843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 52907904, while the sum is 65.

The square root of 9993794843 is about 99968.9694005095. The cubic root of 9993794843 is about 2153.9889776454.

The spelling of 9993794843 in words is "nine billion, nine hundred ninety-three million, seven hundred ninety-four thousand, eight hundred forty-three".