3871216 has 10 divisors (see below), whose sum is σ = 7500512. Its totient is φ = 1935600.

The previous prime is 3871211. The next prime is 3871271. The reversal of 3871216 is 6121783.

3871216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3871211) 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 as a sum of consecutive naturals, namely, 120960 + ... + 120991.

Almost surely, 2^3871216 is an apocalyptic number.

It is an amenable number.

3871216 is a deficient number, since it is larger than the sum of its proper divisors (3629296).

3871216 is a wasteful number, since it uses less digits than its factorization.

3871216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241959 (or 241953 counting only the distinct ones).

The product of its digits is 2016, while the sum is 28.

The square root of 3871216 is about 1967.5405967857. The cubic root of 3871216 is about 157.0178891539.

Adding to 3871216 its reverse (6121783), we get a palindrome (9992999).

The spelling of 3871216 in words is "three million, eight hundred seventy-one thousand, two hundred sixteen".