Two thousand six hundred eighty-seven ten-thousandths.
3,000,684 is what you write according to the question. In Indian classification of numbers it is, 30,00,684(30 lakhs and six hundred and eighty four).
eighty-three thousand, six hundred two.
forty six and eighty nine thousand
Six and twenty-nine thousand one hundred eighty-six millionths.
Two hundred eighty-six thousand four hundred fifty-five millionths
82,670,000 eighty-two million, six hundred and seventy thousand
Two hundred eighty thousand, six hundred.
Six hundred eighty thousand.