CREATE TABLE table_name_92 (revenue__ INTEGER, debt_as__percentage_of_value VARCHAR(255), operating_income__$m_ VARCHAR(255), team VARCHAR(255))
Name the most revenue for operating income more than 27 for hamburg and debt as % of value less than 0
    
SQL: SELECT MAX(revenue__) AS $m_ FROM table_name_92 WHERE operating_income__$m_ > 27 AND team = "hamburg" AND debt_as__percentage_of_value < 0