3821156 has 12 divisors (see below), whose sum is σ = 6917820. Its totient is φ = 1844640.

The previous prime is 3821137. The next prime is 3821171. The reversal of 3821156 is 6511283.

3821156 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 2788900 + 1032256 = 1670^2 + 1016^2 .

It is a congruent number.

It is an unprimeable number.

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, 16355 + ... + 16586.

It is an arithmetic number, because the mean of its divisors is an integer number (576485).

Almost surely, 2^3821156 is an apocalyptic number.

It is an amenable number.

3821156 is a deficient number, since it is larger than the sum of its proper divisors (3096664).

3821156 is a wasteful number, since it uses less digits than its factorization.

3821156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32974 (or 32972 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 3821156 is about 1954.7777367261. Note that the first 4 decimals coincide. The cubic root of 3821156 is about 156.3381335319.

The spelling of 3821156 in words is "three million, eight hundred twenty-one thousand, one hundred fifty-six".