Just like 6 figures has a meaning, so does the term 'seven figures'. A seven-figure number has seven digits in it (with the first digit being one). The smallest possible seven-figure number is 1,000,000, and the largest is 9,999,999. A person who gets a salary between 1,000,000 and 9,999,999 per year can be said to earn a seven-figure income. It is what most people would call a "millionaire".