The sphere

The area of a certain sphere is a 4-digit number multiplied by $\pi$ . The volume of that sphere is also a 4-digit number multiplied by $\pi$ . What is the radius of the sphere?

Memory help:

• Area = $4\pi { r }^{ 2 }$
• Volume = $\frac { 4 }{ 3 } \pi { r }^{ 3 }$