999000996 has 24 divisors (see below), whose sum is σ = 2664002880. Its totient is φ = 285428832.

The previous prime is 999000991. The next prime is 999001007. The reversal of 999000996 is 699000999.

It is not an unprimeable number, because it can be changed into a prime (999000991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5946351 + ... + 5946518.

It is an arithmetic number, because the mean of its divisors is an integer number (111000120).

Almost surely, 2^999000996 is an apocalyptic number.

It is an amenable number.

999000996 is an abundant number, since it is smaller than the sum of its proper divisors (1665001884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

999000996 is a wasteful number, since it uses less digits than its factorization.

999000996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11892883 (or 11892881 counting only the distinct ones).

The product of its (nonzero) digits is 354294, while the sum is 51.

The square root of 999000996 is about 31606.9770145770. The cubic root of 999000996 is about 999.6668877152. Note that the first 3 decimals are identical.

The spelling of 999000996 in words is "nine hundred ninety-nine million, nine hundred ninety-six", and thus it is an aban number.