3985828 has 24 divisors (see below), whose sum is σ = 8697024. Its totient is φ = 1552800.

The previous prime is 3985777. The next prime is 3985829. The reversal of 3985828 is 8285893.

3985828 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (3985829) 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 7 ways as a sum of consecutive naturals, for example, 6163 + ... + 6778.

It is an arithmetic number, because the mean of its divisors is an integer number (362376).

Almost surely, 2^3985828 is an apocalyptic number.

It is an amenable number.

3985828 is an abundant number, since it is smaller than the sum of its proper divisors (4711196).

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

3985828 is a wasteful number, since it uses less digits than its factorization.

3985828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12963 (or 12961 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 3985828 is about 1996.4538562161. The cubic root of 3985828 is about 158.5524112912.

It can be divided in two parts, 398 and 5828, that added together give a palindrome (6226).

The spelling of 3985828 in words is "three million, nine hundred eighty-five thousand, eight hundred twenty-eight".