It is a happy number.
It is an unprimeable number.
Almost surely, 2999947674 is an apocalyptic number.
999947674 is the 16903-rd nonagonal number.
999947674 is a wasteful number, since it uses less digits than its factorization.
999947674 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 19605.
The square root of 999947674 is about 31621.9492441563. The cubic root of 999947674 is about 999.9825576958.
The spelling of 999947674 in words is "nine hundred ninety-nine million, nine hundred forty-seven thousand, six hundred seventy-four".