2004087 has 4 divisors (see below), whose sum is σ = 2672120. Its totient is φ = 1336056.

The previous prime is 2004083. The next prime is 2004091. The reversal of 2004087 is 7804002.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (2004083) and next prime (2004091).

It is not a de Polignac number, because 2004087 - 2² = 2004083 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004083) 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, 334012 + ... + 334017.

It is an arithmetic number, because the mean of its divisors is an integer number (668030).

2^2004087 is an apocalyptic number.

2004087 is a deficient number, since it is larger than the sum of its proper divisors (668033).

2004087 is an equidigital number, since it uses as much as digits as its factorization.

2004087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 668032.

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 2004087 is about 1415.6577976333. The cubic root of 2004087 is about 126.0778682191.

Adding to 2004087 its reverse (7804002), we get a palindrome (9808089).

The spelling of 2004087 in words is "two million, four thousand, eighty-seven".