999000986 has 16 divisors (see below), whose sum is σ = 1511027136. Its totient is φ = 495333216.

The previous prime is 999000967. The next prime is 999000991. The reversal of 999000986 is 689000999.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 477635 + ... + 479721.

It is an arithmetic number, because the mean of its divisors is an integer number (94439196).

Almost surely, 2^999000986 is an apocalyptic number.

999000986 is a deficient number, since it is larger than the sum of its proper divisors (512026150).

999000986 is a wasteful number, since it uses less digits than its factorization.

999000986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3973.

The product of its (nonzero) digits is 314928, while the sum is 50.

The square root of 999000986 is about 31606.9768563841. The cubic root of 999000986 is about 999.6668843796. Note that the first 3 decimals are identical.

The spelling of 999000986 in words is "nine hundred ninety-nine million, nine hundred eighty-six", and thus it is an aban number.