3973982 has 4 divisors (see below), whose sum is σ = 5960976. Its totient is φ = 1986990.

The previous prime is 3973973. The next prime is 3973997. The reversal of 3973982 is 2893793.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 993494 + ... + 993497.

It is an arithmetic number, because the mean of its divisors is an integer number (1490244).

Almost surely, 2^3973982 is an apocalyptic number.

3973982 is a deficient number, since it is larger than the sum of its proper divisors (1986994).

3973982 is a wasteful number, since it uses less digits than its factorization.

3973982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1986993.

The product of its digits is 81648, while the sum is 41.

The square root of 3973982 is about 1993.4848883300. The cubic root of 3973982 is about 158.3951812550.

The spelling of 3973982 in words is "three million, nine hundred seventy-three thousand, nine hundred eighty-two".