You're a casino guy, right? Or is it your wife who always wants to stay at a casino on your epic trips?
Anyway, think of it as a bet. But you're betting on how long you expect to live - and draw your SS benefit.
If you run the benefit you get at different ages, you'll find that the total amount will be the same at your SS actuarial age. Based on your numbers, that's at about 77.33 years old in Aug 2036. ~$415,000.
If you plan to die before then, you should take it ASAP. If you plan to die at around 77, then it doesn't matter. If you plan to live to 90, you should wait - $876,000 vs $928,000.
And you should look up the benefit amount if you wait until 70 to receive benefits. It will still be about the same when you're 77, but a huge amount higher at 90.
Obviously, you have to draw down your savings for your living expenses, but there are a few advantages to that.
If you're not drawing, you can't be taxed on SS if a dream job drops in your lap and you continue to work.
Drawing down an IRA or 401(k) will reduce the amount of RMD (Required Minimum Distribution) you'll have to take out at 73 yo.
If your die and your wife gets your survivor benefit, she'll get the higher amount.
Personally, I'm waiting until 70 to start receiving SS. I'm working part time, when I want to, and supplementing the income with IRA distributions. I plan to still be riding when I'm 90!