3966155 has 16 divisors (see below), whose sum is σ = 5080320. Its totient is φ = 2963808.

The previous prime is 3966139. The next prime is 3966161. The reversal of 3966155 is 5516693.

3966155 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 3966155 - 2⁴ = 3966139 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 7634 + ... + 8136.

It is an arithmetic number, because the mean of its divisors is an integer number (317520).

Almost surely, 2^3966155 is an apocalyptic number.

3966155 is a deficient number, since it is larger than the sum of its proper divisors (1114165).

3966155 is a wasteful number, since it uses less digits than its factorization.

3966155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610.

The product of its digits is 24300, while the sum is 35.

The square root of 3966155 is about 1991.5207756888. The cubic root of 3966155 is about 158.2911232511.

The spelling of 3966155 in words is "three million, nine hundred sixty-six thousand, one hundred fifty-five".