Convert the words into digits by place value.<br><br>
&bull; Sixty-three thousand = 63&thinsp;000<br>
&bull; Four hundred = 400<br>
&bull; Twenty-seven = 27<br>
&bull; 63&thinsp;000 + 400 + 27 = 63&thinsp;427<br><br>
Final Answer: 63427