9638393047 has 2 divisors, whose sum is σ = 9638393048. Its totient is φ = 9638393046.

The previous prime is 9638393003. The next prime is 9638393053. The reversal of 9638393047 is 7403938369.

It is a strong prime.

It is an emirp because it is prime and its reverse (7403938369) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9638393047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9638392985 and 9638393003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9638393077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4819196523 + 4819196524.

It is an arithmetic number, because the mean of its divisors is an integer number (4819196524).

Almost surely, 2^9638393047 is an apocalyptic number.

9638393047 is a deficient number, since it is larger than the sum of its proper divisors (1).

9638393047 is an equidigital number, since it uses as much as digits as its factorization.

9638393047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 52.

The square root of 9638393047 is about 98175.3179113773. The cubic root of 9638393047 is about 2128.1466128440.

The spelling of 9638393047 in words is "nine billion, six hundred thirty-eight million, three hundred ninety-three thousand, forty-seven".