1983981982 has 8 divisors (see below), whose sum is σ = 2976196752. Its totient is φ = 991916400.

The previous prime is 1983981953. The next prime is 1983982009. The reversal of 1983981982 is 2891893891.

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, 6007 + ... + 63277.

It is an arithmetic number, because the mean of its divisors is an integer number (372024594).

Almost surely, 2^1983981982 is an apocalyptic number.

1983981982 is a deficient number, since it is larger than the sum of its proper divisors (992214770).

1983981982 is a wasteful number, since it uses less digits than its factorization.

1983981982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74594.

The product of its digits is 2239488, while the sum is 58.

The square root of 1983981982 is about 44541.9126441602. The cubic root of 1983981982 is about 1256.5484570877.

The spelling of 1983981982 in words is "one billion, nine hundred eighty-three million, nine hundred eighty-one thousand, nine hundred eighty-two".