4084005 has 8 divisors (see below), whose sum is σ = 6534432. Its totient is φ = 2178128.

The previous prime is 4084001. The next prime is 4084019. The reversal of 4084005 is 5004804.

4084005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4084005 - 2² = 4084001 is a prime.

It is a Curzon number.

4084005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4084001) 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 7 ways as a sum of consecutive naturals, for example, 136119 + ... + 136148.

It is an arithmetic number, because the mean of its divisors is an integer number (816804).

Almost surely, 2^4084005 is an apocalyptic number.

It is an amenable number.

4084005 is a deficient number, since it is larger than the sum of its proper divisors (2450427).

4084005 is a wasteful number, since it uses less digits than its factorization.

4084005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272275.

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 4084005 is about 2020.8921297288. The cubic root of 4084005 is about 159.8436623949.

Adding to 4084005 its reverse (5004804), we get a palindrome (9088809).

The spelling of 4084005 in words is "four million, eighty-four thousand, five".