8347664743 has 16 divisors (see below), whose sum is σ = 9261942912. Its totient is φ = 7459452000.

The previous prime is 8347664729. The next prime is 8347664747. The reversal of 8347664743 is 3474667438.

It is a de Polignac number, because none of the positive numbers 2^k-8347664743 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 (8347664747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1340908 + ... + 1347118.

It is an arithmetic number, because the mean of its divisors is an integer number (578871432).

Almost surely, 2^8347664743 is an apocalyptic number.

8347664743 is a deficient number, since it is larger than the sum of its proper divisors (914278169).

8347664743 is a wasteful number, since it uses less digits than its factorization.

8347664743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8286.

The product of its digits is 8128512, while the sum is 52.

The square root of 8347664743 is about 91365.5555611632. Note that the first 4 decimals coincide. The cubic root of 8347664743 is about 2028.5622199564.

The spelling of 8347664743 in words is "eight billion, three hundred forty-seven million, six hundred sixty-four thousand, seven hundred forty-three".