4083805 has 16 divisors (see below), whose sum is σ = 5479488. Its totient is φ = 2896000.

The previous prime is 4083787. The next prime is 4083817. The reversal of 4083805 is 5083804.

It is not a de Polignac number, because 4083805 - 2¹⁷ = 3952733 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1350 + ... + 3160.

It is an arithmetic number, because the mean of its divisors is an integer number (342468).

Almost surely, 2^4083805 is an apocalyptic number.

It is an amenable number.

4083805 is a deficient number, since it is larger than the sum of its proper divisors (1395683).

4083805 is a wasteful number, since it uses less digits than its factorization.

4083805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 4083805 is about 2020.8426460267. The cubic root of 4083805 is about 159.8410530890.

Subtracting 4083805 from its reverse (5083804), we obtain a palindrome (999999).

It can be divided in two parts, 40 and 83805, that added together give a triangular number (83845 = T₄₀₉).

The spelling of 4083805 in words is "four million, eighty-three thousand, eight hundred five".