To round 34,612 to the nearest hundred, we need to determine if it is closer to 34,600 or 34,700.
The hundreds digit in 34,612 is 6. Since the tens and ones digits are both 1, which is less than 5, we do not need to round up.
Therefore, the hundreds digit remains the same.
So, when we round 34,612 to the nearest hundred, it remains as 34,600.