Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_26769_1 (country_or_territory_with_flag VARCHAR, population_density_per_km² VARCHAR)

### Question ###
What was the country with a population density per km² of 3.5/km² (/sqmi)?

### Accurate SQL ###

SELECT country_or_territory_with_flag FROM table_26769_1 WHERE population_density_per_km² = "3.5/km² (/sqmi)"