Population, Area AND Population Density (ALL of them must be higer!). (Remember most of the larger countries have often lower population density!) Here as referenz Austria (First caveat) and sources (second - fourth caveat):
Area: 83.871 km², Population: 9.120.813 Inhabitants, Population Density: 107 Inhabitants per square kilometre
Area :https://en.wikipedia.org/wiki/List_of_countries_and_dependencies_by_area