3721168 has 20 divisors (see below), whose sum is σ = 7865568. Its totient is φ = 1691360.

The previous prime is 3721163. The next prime is 3721171. The reversal of 3721168 is 8611273.

3721168 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 (3721163) 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 3 ways as a sum of consecutive naturals, for example, 10396 + ... + 10747.

Almost surely, 2^3721168 is an apocalyptic number.

It is an amenable number.

3721168 is an abundant number, since it is smaller than the sum of its proper divisors (4144400).

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

3721168 is a wasteful number, since it uses less digits than its factorization.

3721168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21162 (or 21156 counting only the distinct ones).

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

The square root of 3721168 is about 1929.0329183298. The cubic root of 3721168 is about 154.9624327964.

It can be divided in two parts, 372 and 1168, that added together give a triangular number (1540 = T₅₅).

The spelling of 3721168 in words is "three million, seven hundred twenty-one thousand, one hundred sixty-eight".