1983801 has 4 divisors (see below), whose sum is σ = 2645072. Its totient is φ = 1322532.

The previous prime is 1983767. The next prime is 1983833. The reversal of 1983801 is 1083891.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1983801 - 2¹¹ = 1981753 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1983851) 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 in 3 ways as a sum of consecutive naturals, for example, 330631 + ... + 330636.

It is an arithmetic number, because the mean of its divisors is an integer number (661268).

2^1983801 is an apocalyptic number.

It is an amenable number.

1983801 is a deficient number, since it is larger than the sum of its proper divisors (661271).

1983801 is an equidigital number, since it uses as much as digits as its factorization.

1983801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 661270.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 1983801 is about 1408.4747069082. The cubic root of 1983801 is about 125.6510247808.

The spelling of 1983801 in words is "one million, nine hundred eighty-three thousand, eight hundred one".