8289734643 has 40 divisors (see below), whose sum is σ = 12745656000. Its totient is φ = 5367107952.

The previous prime is 8289734573. The next prime is 8289734669. The reversal of 8289734643 is 3464379828.

It is not a de Polignac number, because 8289734643 - 2¹³ = 8289726451 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8289734643.

It is not an unprimeable number, because it can be changed into a prime (8289739643) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 386208 + ... + 407106.

It is an arithmetic number, because the mean of its divisors is an integer number (318641400).

Almost surely, 2^8289734643 is an apocalyptic number.

8289734643 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

8289734643 is a deficient number, since it is larger than the sum of its proper divisors (4455921357).

8289734643 is a wasteful number, since it uses less digits than its factorization.

8289734643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21053 (or 21044 counting only the distinct ones).

The product of its digits is 6967296, while the sum is 54.

The square root of 8289734643 is about 91047.9798952179. The cubic root of 8289734643 is about 2023.8588006133.

The spelling of 8289734643 in words is "eight billion, two hundred eighty-nine million, seven hundred thirty-four thousand, six hundred forty-three".