Can the software be downloaded on an Android device? If yes, then what is the process?
Sorry, there is no Android support at this time, and probably not ever. It would involve a massive coding effort for support and because blender is very cpu/gpu intensive, the devices that run it would make for a poor experience indeed.
In fact they have a version for Android.
Check this out.
I'm running Blender 2.76b on KitKat Galaxy Tab 3 lite 8GB internal 1GB Ram
A little slow, but it's sufficient for simple designs.
Go to Google Play Store and install GNURoot Debian. You can download apk. Just make sure your internal memory free about 850MB to install.
Install Hacker's Keyboard
Launch Virtual Machine (computer button)
Touch the 3 dots button and switch to Input Track pad mode.
Install blender by click the terminal and enter
apt-get install blender
When the terminal back to receive input state (install completed) click at the wall screen and select exit
Launch virtual machine then click main screen and go to App -> Graphic -> Blender
Wait until it display frame placing, just click and wait until it in.
If nothing happen after install blender and reboot the machine, or can't boot the virtual machine, you can uninstall and install agian (sometimes got unknown error)
You can install inkscape by entering
apt-get install inkscape