3981982 has 8 divisors (see below), whose sum is σ = 6287400. Its totient is φ = 1886184.

The previous prime is 3981973. The next prime is 3982031. The reversal of 3981982 is 2891893.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52357 + ... + 52432.

It is an arithmetic number, because the mean of its divisors is an integer number (785925).

Almost surely, 2^3981982 is an apocalyptic number.

3981982 is a deficient number, since it is larger than the sum of its proper divisors (2305418).

3981982 is a wasteful number, since it uses less digits than its factorization.

3981982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104810.

The product of its digits is 31104, while the sum is 40.

The square root of 3981982 is about 1995.4904159128. The cubic root of 3981982 is about 158.5013981506.

The spelling of 3981982 in words is "three million, nine hundred eighty-one thousand, nine hundred eighty-two".