3806005 has 16 divisors (see below), whose sum is σ = 5362560. Its totient is φ = 2538432.

The previous prime is 3806003. The next prime is 3806009. The reversal of 3806005 is 5006083.

3806005 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3806005 - 2¹ = 3806003 is a prime.

3806005 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3806003) 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 15 ways as a sum of consecutive naturals, for example, 175 + ... + 2764.

It is an arithmetic number, because the mean of its divisors is an integer number (335160).

Almost surely, 2^3806005 is an apocalyptic number.

3806005 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3806005 is a deficient number, since it is larger than the sum of its proper divisors (1556555).

3806005 is a wasteful number, since it uses less digits than its factorization.

3806005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 3806005 is about 1950.8985109431. The cubic root of 3806005 is about 156.1312313445.

The spelling of 3806005 in words is "three million, eight hundred six thousand, five".