Can a Rule 12(b)(1) jurisdictional attack be either facial or factual?

"A Rule 12(b)(1) jurisdictional attack may be facial or factual." Safe Air for Everyone v. Meyer, 373 F.3d 1035, 1039 (9th Cir. 2004). "In a facial attack, the challenger asserts that the allegations contained in a complaint are insufficient on their face to invoke federal jurisdiction. By contrast, in a factual attack, the challenger disputes the truth of the allegations that, by themselves, would otherwise invoke federal jurisdiction." Id. A "jurisdictional finding of genuinely disputed facts is inappropriate when the jurisdictional issue and substantive issues are so intertwined that the question of jurisdiction is dependent on the resolution of factual issues going to the merits of an action." Id. (internal quotations and citation omitted). "The question of jurisdiction and the merits of an action are intertwined where a statute provides the basis for both the subject matter jurisdiction of the federal court and the plaintiff's substantive claim for relief." Id. (internal quotations and citation omitted).