998824806 has 48 divisors (see below), whose sum is σ = 2515219200. Its totient is φ = 280539504.

The previous prime is 998824793. The next prime is 998824831. The reversal of 998824806 is 608428899.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59746 + ... + 74613.

It is an arithmetic number, because the mean of its divisors is an integer number (52400400).

Almost surely, 2^998824806 is an apocalyptic number.

998824806 is an abundant number, since it is smaller than the sum of its proper divisors (1516394394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

998824806 is a wasteful number, since it uses less digits than its factorization.

998824806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134433 (or 134430 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 54.

The square root of 998824806 is about 31604.1896906091. The cubic root of 998824806 is about 999.6081151130.

The spelling of 998824806 in words is "nine hundred ninety-eight million, eight hundred twenty-four thousand, eight hundred six".