1. The problem is to change the decimal number 82.6574 to a whole number. 2. To convert a decimal to a whole number, we round it to the nearest integer. 3. The rule for rounding is: if the digit after the decimal point is 5 or greater, round up; if less than 5, round down. 4. Here, the digit after the decimal point is 6, which is greater than 5. 5. Therefore, we round 82.6574 up to 83. Final answer: 83