2000999 has 16 divisors (see below), whose sum is σ = 2688000. Its totient is φ = 1438560.

The previous prime is 2000989. The next prime is 2001037. The reversal of 2000999 is 9990002.

It is a cyclic number.

It is not a de Polignac number, because 2000999 - 2¹² = 1996903 is a prime.

2000999 is a modest number, since divided by 999 gives 2 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2 + ... + 2000.

It is an arithmetic number, because the mean of its divisors is an integer number (168000).

2^2000999 is an apocalyptic number.

2000999 is a deficient number, since it is larger than the sum of its proper divisors (687001).

2000999 is a wasteful number, since it uses less digits than its factorization.

2000999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2030.

The product of its (nonzero) digits is 1458, while the sum is 29.

The square root of 2000999 is about 1414.5667181155. The cubic root of 2000999 is about 126.0130791832.

It can be divided in two parts, 20009 and 99, that multiplied together give a palindrome (1980891).

The spelling of 2000999 in words is "two million, nine hundred ninety-nine", and thus it is an aban number.