3985982 has 48 divisors (see below), whose sum is σ = 8133216. Its totient is φ = 1425600.

The previous prime is 3985951. The next prime is 3985999. The reversal of 3985982 is 2895893.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 21932 + ... + 22112.

It is an arithmetic number, because the mean of its divisors is an integer number (169442).

Almost surely, 2^3985982 is an apocalyptic number.

3985982 is an abundant number, since it is smaller than the sum of its proper divisors (4147234).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3985982 is a wasteful number, since it uses less digits than its factorization.

3985982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225 (or 214 counting only the distinct ones).

The product of its digits is 155520, while the sum is 44.

The square root of 3985982 is about 1996.4924242281. The cubic root of 3985982 is about 158.5544532557.

The spelling of 3985982 in words is "three million, nine hundred eighty-five thousand, nine hundred eighty-two".