You have an annuity coming to you already that will cover a significant fraction of your spending - Social Security. With $3.8M, you don't need to buy another one, especially considering that SS is inflation protected and private annuities are not fully protected.
I agree with the folks above that your "broker" seems to be self serving. A thought on Oldshooter's point about whether your broker is a fiduciary. If you ask and get any answer other than 100% "Yes", then it's really 100% "No". What's usual is that they give you a mealy-mouthed scripted answer full of bafflegab that has been tested for customer acceptance so they can continue the long con of extracting your cash and putting it in their wallet.
A financial planner that works by the hour (instead of one that takes a percentage of assets under management) might do you a lot of good. They could help you set goals (live it up?, charity?, legacy to heirs?), discuss your risk tolerance and make a plan to meet your goals. Minimally, they would help you set an asset allocation that meets your willingness, need and ability to take risk, they would recommend low cost, highly diversified ETFs like Vanguard Total Market and Total Bond (or equivalent at Fidelity or Schwab), and make a Roth Conversion plan for you - with a $2+M IRA, you need to think about taxes.