Is the Hercules Beetle an arthropod?

Yes, the Hercules beetle is an arthropod. Specifically, it belongs to the class Insecta within the phylum Arthropoda, which includes all insects, arachnids, crustaceans, and myriapods. As an insect, it has a segmented body, exoskeleton, and jointed appendages, which are characteristic features of arthropods.