3843885 has 16 divisors (see below), whose sum is σ = 6209280. Its totient is φ = 2030400.

The previous prime is 3843883. The next prime is 3843913. The reversal of 3843885 is 5883483.

It is not a de Polignac number, because 3843885 - 2¹ = 3843883 is a prime.

3843885 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3843881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 460 + ... + 2810.

It is an arithmetic number, because the mean of its divisors is an integer number (388080).

Almost surely, 2^3843885 is an apocalyptic number.

It is an amenable number.

3843885 is a deficient number, since it is larger than the sum of its proper divisors (2365395).

3843885 is a wasteful number, since it uses less digits than its factorization.

3843885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2468.

The product of its digits is 92160, while the sum is 39.

The square root of 3843885 is about 1960.5828215100. The cubic root of 3843885 is about 156.6474977804.

The spelling of 3843885 in words is "three million, eight hundred forty-three thousand, eight hundred eighty-five".