Welcome to the forum. Your piece appears to be Native American, i.e., with the open mouth and "bug eyes." Is it possible that this is one human figure of a set of many, meant to stand in a circle. Each one would have an arm on the shoulder or below the arm of the two figures next to him.
Thus, that is why your figure has "hands" on his back, specifically, his upper shoulder and below his arm. I have seen pottery and carved stone "family" figures like this, all in a circle, from Africa also. Very cool find and worth having a Native American artifact expert check into it! Sub