8473847643 has 12 divisors (see below), whose sum is σ = 12693335928. Its totient is φ = 5649231600.

The previous prime is 8473847621. The next prime is 8473847663. The reversal of 8473847643 is 3467483748.

It is not a de Polignac number, because 8473847643 - 2²¹ = 8471750491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8473847643.

It is not an unprimeable number, because it can be changed into a prime (8473847663) 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 in 11 ways as a sum of consecutive naturals, for example, 17435658 + ... + 17436143.

It is an arithmetic number, because the mean of its divisors is an integer number (1057777994).

Almost surely, 2^8473847643 is an apocalyptic number.

8473847643 is a deficient number, since it is larger than the sum of its proper divisors (4219488285).

8473847643 is an equidigital number, since it uses as much as digits as its factorization.

8473847643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34871816 (or 34871804 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 54.

The square root of 8473847643 is about 92053.5042407403. The cubic root of 8473847643 is about 2038.7323634174.

The spelling of 8473847643 in words is "eight billion, four hundred seventy-three million, eight hundred forty-seven thousand, six hundred forty-three".