CREATE TABLE table_67544 ("Member countries" TEXT, "Population" TEXT, "Area  ( km\\u00b2 ) " TEXT, "GDP  ( billion US$ ) " TEXT, "GDP per capita  ( US$ ) " TEXT)

Which country has an area of 871,980 square km?
SELECT "Member countries" FROM table_67544 WHERE "Area (km\u00b2)" = '871,980'
SELECT "Member countries" FROM "table_67544" WHERE "Area (km\u00b2)" = '871,980'