3889844 has 12 divisors (see below), whose sum is σ = 7779744. Its totient is φ = 1667064.

The previous prime is 3889843. The next prime is 3889859. The reversal of 3889844 is 4489883.

3889844 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 3889795 and 3889804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3889843) 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 3 ways as a sum of consecutive naturals, for example, 69434 + ... + 69489.

It is an arithmetic number, because the mean of its divisors is an integer number (648312).

Almost surely, 2^3889844 is an apocalyptic number.

It is an amenable number.

3889844 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3889844 is a wasteful number, since it uses less digits than its factorization.

3889844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138934 (or 138932 counting only the distinct ones).

The product of its digits is 221184, while the sum is 44.

The square root of 3889844 is about 1972.2687443652. The cubic root of 3889844 is about 157.2693390194.

The spelling of 3889844 in words is "three million, eight hundred eighty-nine thousand, eight hundred forty-four".