998804 has 12 divisors (see below), whose sum is σ = 1788864. Its totient is φ = 487704.

The previous prime is 998779. The next prime is 998813. The reversal of 998804 is 408899.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 998804.

It is an unprimeable number.

998804 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2732 + ... + 3075.

It is an arithmetic number, because the mean of its divisors is an integer number (149072).

2⁹⁹⁸⁸⁰⁴ is an apocalyptic number.

It is an amenable number.

998804 is a deficient number, since it is larger than the sum of its proper divisors (790060).

998804 is a wasteful number, since it uses less digits than its factorization.

998804 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5854 (or 5852 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 38.

The square root of 998804 is about 999.4018210910. The cubic root of 998804 is about 99.9601174293.

The spelling of 998804 in words is "nine hundred ninety-eight thousand, eight hundred four".