3857928 has 64 divisors (see below), whose sum is σ = 10454400. Its totient is φ = 1182720.

The previous prime is 3857921. The next prime is 3857941. The reversal of 3857928 is 8297583.

3857928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 3857928.

It is not an unprimeable number, because it can be changed into a prime (3857921) 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, 15888 + ... + 16128.

It is an arithmetic number, because the mean of its divisors is an integer number (163350).

Almost surely, 2^3857928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3857928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5227200).

3857928 is an abundant number, since it is smaller than the sum of its proper divisors (6596472).

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

3857928 is a wasteful number, since it uses less digits than its factorization.

3857928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302 (or 298 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The square root of 3857928 is about 1964.1608895404. The cubic root of 3857928 is about 156.8380278791.

The spelling of 3857928 in words is "three million, eight hundred fifty-seven thousand, nine hundred twenty-eight".