Can i display total number of entries?

There is no shortcode, but you can create a shortcode of your own and call Gravity Forms functions. I wrote a function once which has more functionality than you need: http://pastebin.com/NSsVZgt8

You can strip out what you don't need. But I was grabbing the total number of donations (entries) here, and you can use this in a similar manner for displaying the total number of entries.

One of our developers also wrote up this code which can be used to display the total number of entries left, when you are limiting form entries. http://gravitywiz.com/shortcode-display-number-of-entries-left/ In there is the code to calculate the total number of entries submitted as well.