Round the value 3472 off to 2 significant digits.

The given number is $3472$.

To round off to $2$ significant digits, we consider the first two digits, which are $3$ and $4$.

The third digit is $7$, which is greater than $5$.

According to the rules of rounding off, the preceding digit $4$ is increased by $1$ to become $5$.

The remaining digits are replaced by zeros to maintain the magnitude of the number.

Therefore, $3472$ rounded off to $2$ significant digits is $3500$.