8243045847 has 6 divisors (see below), whose sum is σ = 11906621792. Its totient is φ = 5495363892.

The previous prime is 8243045809. The next prime is 8243045849. The reversal of 8243045847 is 7485403428.

It is a happy number.

It is not a de Polignac number, because 8243045847 - 2¹⁹ = 8242521559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8243045849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 457946983 + ... + 457947000.

Almost surely, 2^8243045847 is an apocalyptic number.

8243045847 is a deficient number, since it is larger than the sum of its proper divisors (3663575945).

8243045847 is a wasteful number, since it uses less digits than its factorization.

8243045847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915893989 (or 915893986 counting only the distinct ones).

The product of its (nonzero) digits is 860160, while the sum is 45.

The square root of 8243045847 is about 90791.2212000698. The cubic root of 8243045847 is about 2020.0521052305.

The spelling of 8243045847 in words is "eight billion, two hundred forty-three million, forty-five thousand, eight hundred forty-seven".