998836 has 12 divisors (see below), whose sum is σ = 1774528. Its totient is φ = 491832.

The previous prime is 998831. The next prime is 998839. The reversal of 998836 is 638899.

It is a junction number, because it is equal to n+sod(n) for n = 998792 and 998801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1596 + ... + 2131.

2⁹⁹⁸⁸³⁶ is an apocalyptic number.

It is an amenable number.

998836 is a deficient number, since it is larger than the sum of its proper divisors (775692).

998836 is a wasteful number, since it uses less digits than its factorization.

998836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3798 (or 3796 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The square root of 998836 is about 999.4178305394. The cubic root of 998836 is about 99.9611849359.

The spelling of 998836 in words is "nine hundred ninety-eight thousand, eight hundred thirty-six".