4004885 has 4 divisors (see below), whose sum is σ = 4805868. Its totient is φ = 3203904.

The previous prime is 4004881. The next prime is 4004887. The reversal of 4004885 is 5884004.

4004885 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1067089 + 2937796 = 1033^2 + 1714^2 .

It is a cyclic number.

It is not a de Polignac number, because 4004885 - 2² = 4004881 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 (4004881) 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, 400484 + ... + 400493.

It is an arithmetic number, because the mean of its divisors is an integer number (1201467).

Almost surely, 2^4004885 is an apocalyptic number.

It is an amenable number.

4004885 is a deficient number, since it is larger than the sum of its proper divisors (800983).

4004885 is an equidigital number, since it uses as much as digits as its factorization.

4004885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 800982.

The product of its (nonzero) digits is 5120, while the sum is 29.

The square root of 4004885 is about 2001.2208773646. The cubic root of 4004885 is about 158.8046993599.

Adding to 4004885 its reverse (5884004), we get a palindrome (9888889).

The spelling of 4004885 in words is "four million, four thousand, eight hundred eighty-five".