3981146 has 16 divisors (see below), whose sum is σ = 6770400. Its totient is φ = 1740528.

The previous prime is 3981137. The next prime is 3981157. The reversal of 3981146 is 6411893.

It is a happy number.

It is a Curzon number.

It is a nialpdrome in base 13.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3536 + ... + 4523.

It is an arithmetic number, because the mean of its divisors is an integer number (423150).

Almost surely, 2^3981146 is an apocalyptic number.

3981146 is a deficient number, since it is larger than the sum of its proper divisors (2789254).

3981146 is a wasteful number, since it uses less digits than its factorization.

3981146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8093.

The product of its digits is 5184, while the sum is 32.

The square root of 3981146 is about 1995.2809326007. The cubic root of 3981146 is about 158.4903051453.

The spelling of 3981146 in words is "three million, nine hundred eighty-one thousand, one hundred forty-six".