1998682 has 16 divisors (see below), whose sum is σ = 3444480. Its totient is φ = 852048.

The previous prime is 1998679. The next prime is 1998691. The reversal of 1998682 is 2868991.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4944 + ... + 5332.

It is an arithmetic number, because the mean of its divisors is an integer number (215280).

2^1998682 is an apocalyptic number.

1998682 is a deficient number, since it is larger than the sum of its proper divisors (1445798).

1998682 is a wasteful number, since it uses less digits than its factorization.

1998682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765.

The product of its digits is 62208, while the sum is 43.

The square root of 1998682 is about 1413.7475022082. The cubic root of 1998682 is about 125.9644226420.

The spelling of 1998682 in words is "one million, nine hundred ninety-eight thousand, six hundred eighty-two".