3946155 has 8 divisors (see below), whose sum is σ = 6313872. Its totient is φ = 2104608.

The previous prime is 3946141. The next prime is 3946157. The reversal of 3946155 is 5516493.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3946155 - 2⁴ = 3946139 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

3946155 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3946157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131524 + ... + 131553.

It is an arithmetic number, because the mean of its divisors is an integer number (789234).

Almost surely, 2^3946155 is an apocalyptic number.

3946155 is a deficient number, since it is larger than the sum of its proper divisors (2367717).

3946155 is a wasteful number, since it uses less digits than its factorization.

3946155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263085.

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

The square root of 3946155 is about 1986.4931411913. The cubic root of 3946155 is about 158.0246049381.

The spelling of 3946155 in words is "three million, nine hundred forty-six thousand, one hundred fifty-five".