4011982 has 16 divisors (see below), whose sum is σ = 6763680. Its totient is φ = 1770912.

The previous prime is 4011979. The next prime is 4011991. The reversal of 4011982 is 2891104.

It is a happy number.

It is a congruent number.

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, 2757 + ... + 3952.

It is an arithmetic number, because the mean of its divisors is an integer number (422730).

Almost surely, 2^4011982 is an apocalyptic number.

4011982 is a deficient number, since it is larger than the sum of its proper divisors (2751698).

4011982 is a wasteful number, since it uses less digits than its factorization.

4011982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6747.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 4011982 is about 2002.9932600985. The cubic root of 4011982 is about 158.8984491905.

The spelling of 4011982 in words is "four million, eleven thousand, nine hundred eighty-two".