Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_73 (population_in_millions VARCHAR, gdp_2012_millions_of_euro VARCHAR)
### Question:
What is Population in Millions, when GDP 2012 Millions of Euro is 600,638?
### Answer:
SELECT population_in_millions FROM table_name_73 WHERE gdp_2012_millions_of_euro = "600,638"