Wow. I find it remarkable that a two-thirds reduction in our nuclear arsenal will leave over 1700 operationally deployed strategic nuclear warheads. I don’t know the average, but I’d guess it’s between 3 and 5 warheads to delivery vehicle (i.e. missile). That’s still a massive capability.
Growing up on Kwajelein in the Marshall Islands, we used to get up in the middle of the night when there was a mission to watch the warheads blossom from the delivery vehicle (usually an ICBM, I think) upon re-entry and rain down into the lagoon. The missiles were launched from California, about 5k miles away… they reached the atoll in about 25 minutes if I recall correctly.