Answer:
597,000
Explanation:
We are asked to round 597008.439431 to the nearest thousand.
We can see that our given number has 7 thousands and 0 hundreds.
Since the hundreds value is 0, which is less than 5, so we will round down our answer to nearest thousand as:
![597008.439431\approx 597,000](https://img.qammunity.org/2020/formulas/mathematics/middle-school/u1xv14sdt135czkwxl4nrpb82p9pf3r60n.png)
Therefore, our required number would be 597,000.