3871228 has 12 divisors (see below), whose sum is σ = 6813352. Its totient is φ = 1924560.

The previous prime is 3871211. The next prime is 3871271. The reversal of 3871228 is 8221783.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 3871228.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1950 + ... + 3397.

Almost surely, 2^3871228 is an apocalyptic number.

It is an amenable number.

3871228 is a deficient number, since it is larger than the sum of its proper divisors (2942124).

3871228 is a wasteful number, since it uses less digits than its factorization.

3871228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5532 (or 5530 counting only the distinct ones).

The product of its digits is 5376, while the sum is 31.

The square root of 3871228 is about 1967.5436462757. The cubic root of 3871228 is about 157.0180513952.

The spelling of 3871228 in words is "three million, eight hundred seventy-one thousand, two hundred twenty-eight".