8442847271 has 2 divisors, whose sum is σ = 8442847272. Its totient is φ = 8442847270.

The previous prime is 8442847243. The next prime is 8442847279. The reversal of 8442847271 is 1727482448.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8442847271 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8442847279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4221423635 + 4221423636.

It is an arithmetic number, because the mean of its divisors is an integer number (4221423636).

Almost surely, 2^8442847271 is an apocalyptic number.

8442847271 is a deficient number, since it is larger than the sum of its proper divisors (1).

8442847271 is an equidigital number, since it uses as much as digits as its factorization.

8442847271 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 802816, while the sum is 47.

The square root of 8442847271 is about 91884.9676007996. The cubic root of 8442847271 is about 2036.2431876001.

The spelling of 8442847271 in words is "eight billion, four hundred forty-two million, eight hundred forty-seven thousand, two hundred seventy-one".