3964155 has 32 divisors (see below), whose sum is σ = 7076160. Its totient is φ = 1881600.

The previous prime is 3964133. The next prime is 3964157. The reversal of 3964155 is 5514693.

It is a happy number.

It is not a de Polignac number, because 3964155 - 2⁵ = 3964123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3964157) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5305 + ... + 6005.

It is an arithmetic number, because the mean of its divisors is an integer number (221130).

Almost surely, 2^3964155 is an apocalyptic number.

3964155 is a deficient number, since it is larger than the sum of its proper divisors (3112005).

3964155 is a wasteful number, since it uses less digits than its factorization.

3964155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751.

The product of its digits is 16200, while the sum is 33.

The square root of 3964155 is about 1991.0185835396. The cubic root of 3964155 is about 158.2645117953.

The spelling of 3964155 in words is "three million, nine hundred sixty-four thousand, one hundred fifty-five".