8,700,000
I would write 1700.00 on a cheque as one thousand seven hundred.
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...
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