1983804 has 12 divisors (see below), whose sum is σ = 4628904. Its totient is φ = 661264.

The previous prime is 1983767. The next prime is 1983833. The reversal of 1983804 is 4083891.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 82647 + ... + 82670.

It is an arithmetic number, because the mean of its divisors is an integer number (385742).

2^1983804 is an apocalyptic number.

It is an amenable number.

1983804 is an abundant number, since it is smaller than the sum of its proper divisors (2645100).

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

1983804 is a wasteful number, since it uses less digits than its factorization.

1983804 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165324 (or 165322 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 1983804 is about 1408.4757718896. The cubic root of 1983804 is about 125.6510881193.

The spelling of 1983804 in words is "one million, nine hundred eighty-three thousand, eight hundred four".