2004005 has 8 divisors (see below), whose sum is σ = 2412672. Its totient is φ = 1597968.

The previous prime is 2004001. The next prime is 2004007. The reversal of 2004005 is 5004002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2004005 - 2² = 2004001 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2004001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2024 + ... + 2846.

It is an arithmetic number, because the mean of its divisors is an integer number (301584).

2^2004005 is an apocalyptic number.

It is an amenable number.

2004005 is a deficient number, since it is larger than the sum of its proper divisors (408667).

2004005 is an equidigital number, since it uses as much as digits as its factorization.

2004005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1315.

The product of its (nonzero) digits is 40, while the sum is 11.

The square root of 2004005 is about 1415.6288355356. The cubic root of 2004005 is about 126.0761486454.

Adding to 2004005 its reverse (5004002), we get a palindrome (7008007).

The spelling of 2004005 in words is "two million, four thousand, five".