999000818 has 8 divisors (see below), whose sum is σ = 1586648412. Its totient is φ = 470118016.

The previous prime is 999000817. The next prime is 999000841. The reversal of 999000818 is 818000999.

It can be written as a sum of positive squares in 2 ways, for example, as 823517809 + 175483009 = 28697^2 + 13247^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (999000817) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 14691155 + ... + 14691222.

Almost surely, 2^999000818 is an apocalyptic number.

999000818 is a deficient number, since it is larger than the sum of its proper divisors (587647594).

999000818 is a wasteful number, since it uses less digits than its factorization.

999000818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29382396.

The product of its (nonzero) digits is 46656, while the sum is 44.

The square root of 999000818 is about 31606.9741987429. The cubic root of 999000818 is about 999.6668283423. Note that the first 3 decimals are identical.

The spelling of 999000818 in words is "nine hundred ninety-nine million, eight hundred eighteen", and thus it is an aban number.