2000987 has 4 divisors (see below), whose sum is σ = 2023560. Its totient is φ = 1978416.

The previous prime is 2000969. The next prime is 2000989. The reversal of 2000987 is 7890002.

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

It is a cyclic number.

It is not a de Polignac number, because 2000987 - 2⁸ = 2000731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2000989) 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 3 ways as a sum of consecutive naturals, for example, 11153 + ... + 11330.

It is an arithmetic number, because the mean of its divisors is an integer number (505890).

2^2000987 is an apocalyptic number.

2000987 is a deficient number, since it is larger than the sum of its proper divisors (22573).

2000987 is an equidigital number, since it uses as much as digits as its factorization.

2000987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22572.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 2000987 is about 1414.5624765276. The cubic root of 2000987 is about 126.0128272823.

Adding to 2000987 its reverse (7890002), we get a palindrome (9890989).

The spelling of 2000987 in words is "two million, nine hundred eighty-seven", and thus it is an aban number.