3805985 has 8 divisors (see below), whose sum is σ = 4807680. Its totient is φ = 2884464.

The previous prime is 3805979. The next prime is 3805987. The reversal of 3805985 is 5895083.

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 3805985 - 2¹⁴ = 3789601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3805987) 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, 19937 + ... + 20126.

It is an arithmetic number, because the mean of its divisors is an integer number (600960).

Almost surely, 2^3805985 is an apocalyptic number.

It is an amenable number.

3805985 is a deficient number, since it is larger than the sum of its proper divisors (1001695).

3805985 is a wasteful number, since it uses less digits than its factorization.

3805985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40087.

The product of its (nonzero) digits is 43200, while the sum is 38.

The square root of 3805985 is about 1950.8933850931. The cubic root of 3805985 is about 156.1309578618.

The spelling of 3805985 in words is "three million, eight hundred five thousand, nine hundred eighty-five".