8,700,000
one hundred thousand seven hundred forty nine
Two thousand seven hundred is 2700 (which can colloquially be called "twenty-seven hundred").
you don't you write two hundred million, seven thousand. but...
Ten hundred thousand is a thousand thousand which is a million = 1,000,000
70700
It is 700005.
7,700,070
How to write thirty one hundred thousand in number
It is 105700.
8,700,000
710,000
775,000
745,605
7,024,709
50,721
1,750,000