Does shape affect density

The shape of a substance does not affect density of a substance. The density is a physical Quantity which is predefined and constant for each substance. By the equation

Density=mass/volume

It is clear that the density is affected by mass & volume of the substance and not the shape. However the shape of a substance affects the area acquired by the substance. Like every natural body is spherical in shape like river stones,asteroids,planets,raindrops,dewdrops because they try to acquire the minimum possible area and sphere is the only geometrical figure occupying minimal area.