2000839 has 4 divisors (see below), whose sum is σ = 2087856. Its totient is φ = 1913824.

The previous prime is 2000813. The next prime is 2000863. The reversal of 2000839 is 9380002.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9380002 = 2 ⋅4690001.

It is a cyclic number.

It is not a de Polignac number, because 2000839 - 2⁵ = 2000807 is a prime.

It is a Duffinian number.

2000839 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2000039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43474 + ... + 43519.

It is an arithmetic number, because the mean of its divisors is an integer number (521964).

2^2000839 is an apocalyptic number.

2000839 is a deficient number, since it is larger than the sum of its proper divisors (87017).

2000839 is an equidigital number, since it uses as much as digits as its factorization.

2000839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87016.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 2000839 is about 1414.5101625651. The cubic root of 2000839 is about 126.0097204225.

The spelling of 2000839 in words is "two million, eight hundred thirty-nine", and thus it is an aban number.