1983976 has 8 divisors (see below), whose sum is σ = 3719970. Its totient is φ = 991984.

The previous prime is 1983967. The next prime is 1983979. The reversal of 1983976 is 6793891.

It can be written as a sum of positive squares in only one way, i.e., 1887876 + 96100 = 1374^2 + 310^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (1983979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123991 + ... + 124006.

2^1983976 is an apocalyptic number.

It is an amenable number.

1983976 is a deficient number, since it is larger than the sum of its proper divisors (1735994).

1983976 is a wasteful number, since it uses less digits than its factorization.

1983976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 248003 (or 247999 counting only the distinct ones).

The product of its digits is 81648, while the sum is 43.

The square root of 1983976 is about 1408.5368294794. The cubic root of 1983976 is about 125.6547194193.

The spelling of 1983976 in words is "one million, nine hundred eighty-three thousand, nine hundred seventy-six".