3868928 has 72 divisors (see below), whose sum is σ = 9418752. Its totient is φ = 1548288.

The previous prime is 3868901. The next prime is 3868933. The reversal of 3868928 is 8298683.

3868928 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30401 + ... + 30527.

It is an arithmetic number, because the mean of its divisors is an integer number (130816).

Almost surely, 2^3868928 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 3868928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4709376).

3868928 is an abundant number, since it is smaller than the sum of its proper divisors (5549824).

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

3868928 is a wasteful number, since it uses less digits than its factorization.

3868928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167 (or 153 counting only the distinct ones).

The product of its digits is 165888, while the sum is 44.

The square root of 3868928 is about 1966.9590743073. The cubic root of 3868928 is about 156.9869490281.

The spelling of 3868928 in words is "three million, eight hundred sixty-eight thousand, nine hundred twenty-eight".