1803982 has 8 divisors (see below), whose sum is σ = 2823696. Its totient is φ = 862752.

The previous prime is 1803973. The next prime is 1804007. The reversal of 1803982 is 2893081.

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, 19563 + ... + 19654.

It is an arithmetic number, because the mean of its divisors is an integer number (352962).

2^1803982 is an apocalyptic number.

1803982 is a deficient number, since it is larger than the sum of its proper divisors (1019714).

1803982 is a wasteful number, since it uses less digits than its factorization.

1803982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39242.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 1803982 is about 1343.1239704510. The cubic root of 1803982 is about 121.7336750624.

The spelling of 1803982 in words is "one million, eight hundred three thousand, nine hundred eighty-two".