3866828 has 12 divisors (see below), whose sum is σ = 7733712. Its totient is φ = 1657200.

The previous prime is 3866809. The next prime is 3866839. The reversal of 3866828 is 8286683.

3866828 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69023 + ... + 69078.

It is an arithmetic number, because the mean of its divisors is an integer number (644476).

Almost surely, 2^3866828 is an apocalyptic number.

It is an amenable number.

3866828 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.

3866828 is a wasteful number, since it uses less digits than its factorization.

3866828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138112 (or 138110 counting only the distinct ones).

The product of its digits is 110592, while the sum is 41.

The square root of 3866828 is about 1966.4251829144. The cubic root of 3866828 is about 156.9585404475.

It can be divided in two parts, 38 and 66828, that added together give a palindrome (66866).

The spelling of 3866828 in words is "three million, eight hundred sixty-six thousand, eight hundred twenty-eight".