It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-99000971 is a prime.
It is a Duffinian number.
Almost surely, 299000971 is an apocalyptic number.
99000971 is a wasteful number, since it uses less digits than its factorization.
99000971 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 502740.
The square root of 99000971 is about 9949.9231655325. The cubic root of 99000971 is about 462.6080133406.
The spelling of 99000971 in words is "ninety-nine million, nine hundred seventy-one", and thus it is an aban number.