2000851 has 4 divisors (see below), whose sum is σ = 2029104. Its totient is φ = 1972600.

The previous prime is 2000813. The next prime is 2000863. The reversal of 2000851 is 1580002.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2000851 is a prime.

It is an Ulam number.

It is a Duffinian number.

2000851 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2000351) 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, 14020 + ... + 14161.

It is an arithmetic number, because the mean of its divisors is an integer number (507276).

2^2000851 is an apocalyptic number.

2000851 is a deficient number, since it is larger than the sum of its proper divisors (28253).

2000851 is an equidigital number, since it uses as much as digits as its factorization.

2000851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28252.

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 2000851 is about 1414.5144043098. The cubic root of 2000851 is about 126.0099723358.

Adding to 2000851 its reverse (1580002), we get a palindrome (3580853).

The spelling of 2000851 in words is "two million, eight hundred fifty-one", and thus it is an aban number.