8197385047 has 2 divisors, whose sum is σ = 8197385048. Its totient is φ = 8197385046.

The previous prime is 8197384981. The next prime is 8197385093. The reversal of 8197385047 is 7405837918.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8197385047 - 2¹⁵ = 8197352279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8197384985 and 8197385003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8197385347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4098692523 + 4098692524.

It is an arithmetic number, because the mean of its divisors is an integer number (4098692524).

Almost surely, 2^8197385047 is an apocalyptic number.

8197385047 is a deficient number, since it is larger than the sum of its proper divisors (1).

8197385047 is an equidigital number, since it uses as much as digits as its factorization.

8197385047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1693440, while the sum is 52.

The square root of 8197385047 is about 90539.4115675599. The cubic root of 8197385047 is about 2016.3152975372.

The spelling of 8197385047 in words is "eight billion, one hundred ninety-seven million, three hundred eighty-five thousand, forty-seven".