3869928 has 48 divisors (see below), whose sum is σ = 10670400. Its totient is φ = 1266720.

The previous prime is 3869917. The next prime is 3869959. The reversal of 3869928 is 8299683.

3869928 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3793 + ... + 4703.

It is an arithmetic number, because the mean of its divisors is an integer number (222300).

Almost surely, 2^3869928 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 3869928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5335200).

3869928 is an abundant number, since it is smaller than the sum of its proper divisors (6800472).

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

3869928 is a wasteful number, since it uses less digits than its factorization.

3869928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982 (or 975 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 3869928 is about 1967.2132573770. The cubic root of 3869928 is about 157.0004733105. Note that the first 3 decimals are identical.

The spelling of 3869928 in words is "three million, eight hundred sixty-nine thousand, nine hundred twenty-eight".