3981116 has 24 divisors (see below), whose sum is σ = 7355040. Its totient is φ = 1881792.

The previous prime is 3981101. The next prime is 3981119. The reversal of 3981116 is 6111893.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3981119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9830 + ... + 10226.

It is an arithmetic number, because the mean of its divisors is an integer number (306460).

Almost surely, 2^3981116 is an apocalyptic number.

It is an amenable number.

3981116 is a deficient number, since it is larger than the sum of its proper divisors (3373924).

3981116 is a wasteful number, since it uses less digits than its factorization.

3981116 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 533 (or 531 counting only the distinct ones).

The product of its digits is 1296, while the sum is 29.

The square root of 3981116 is about 1995.2734148482. The cubic root of 3981116 is about 158.4899070421.

The spelling of 3981116 in words is "three million, nine hundred eighty-one thousand, one hundred sixteen".