3868845 has 16 divisors (see below), whose sum is σ = 6256320. Its totient is φ = 2041344.

The previous prime is 3868817. The next prime is 3868847. The reversal of 3868845 is 5488683.

3868845 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3868845 - 2⁷ = 3868717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 3868797 and 3868806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3868847) 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, 126 + ... + 2784.

It is an arithmetic number, because the mean of its divisors is an integer number (391020).

Almost surely, 2^3868845 is an apocalyptic number.

It is an amenable number.

3868845 is a deficient number, since it is larger than the sum of its proper divisors (2387475).

3868845 is a wasteful number, since it uses less digits than its factorization.

3868845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2764.

The product of its digits is 184320, while the sum is 42.

The square root of 3868845 is about 1966.9379756362. The cubic root of 3868845 is about 156.9858264079.

The spelling of 3868845 in words is "three million, eight hundred sixty-eight thousand, eight hundred forty-five".