1983166 has 8 divisors (see below), whose sum is σ = 2980944. Its totient is φ = 989520.

The previous prime is 1983143. The next prime is 1983197. The reversal of 1983166 is 6613891.

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, 871 + ... + 2173.

It is an arithmetic number, because the mean of its divisors is an integer number (372618).

2^1983166 is an apocalyptic number.

1983166 is a deficient number, since it is larger than the sum of its proper divisors (997778).

1983166 is a wasteful number, since it uses less digits than its factorization.

1983166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2066.

The product of its digits is 7776, while the sum is 34.

The square root of 1983166 is about 1408.2492677080. The cubic root of 1983166 is about 125.6376166961.

It can be divided in two parts, 198 and 3166, that added together give a square (3364 = 58²).

The spelling of 1983166 in words is "one million, nine hundred eighty-three thousand, one hundred sixty-six".