1983996 has 36 divisors (see below), whose sum is σ = 5732272. Its totient is φ = 566784.

The previous prime is 1983979. The next prime is 1983997. The reversal of 1983996 is 6993891.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1983997) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 3685 + ... + 4188.

2^1983996 is an apocalyptic number.

It is an amenable number.

1983996 is an abundant number, since it is smaller than the sum of its proper divisors (3748276).

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

1983996 is a wasteful number, since it uses less digits than its factorization.

1983996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7890 (or 7885 counting only the distinct ones).

The product of its digits is 104976, while the sum is 45.

The square root of 1983996 is about 1408.5439290274. The cubic root of 1983996 is about 125.6551416499.

The spelling of 1983996 in words is "one million, nine hundred eighty-three thousand, nine hundred ninety-six".