Discovery stage for mission to asteroid

Asteroid Apophis courtesy: NASA

Target Asteroid Apophis https://cneos.jpl.nasa.gov/nhats/details.html#?des=65679

This asteroid is a near earth asteroid (NEA) that has one of the lowest Delta-Vs.

The Delta-V to get there from low earth orbit is 4.764 km/s.

is it possible to design a 6u cubesat to get there with a small ion thruster?

Time for discovery!