3864028 has 24 divisors (see below), whose sum is σ = 7862400. Its totient is φ = 1627248.

The previous prime is 3864019. The next prime is 3864037. The reversal of 3864028 is 8204683.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (3864019) and next prime (3864037).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483 + ... + 2821.

It is an arithmetic number, because the mean of its divisors is an integer number (327600).

Almost surely, 2^3864028 is an apocalyptic number.

It is an amenable number.

3864028 is an abundant number, since it is smaller than the sum of its proper divisors (3998372).

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

3864028 is a wasteful number, since it uses less digits than its factorization.

3864028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2409 (or 2407 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 3864028 is about 1965.7131021591. The cubic root of 3864028 is about 156.9206463360.

The spelling of 3864028 in words is "three million, eight hundred sixty-four thousand, twenty-eight".