998820808 has 8 divisors (see below), whose sum is σ = 1872789030. Its totient is φ = 499410400.

The previous prime is 998820799. The next prime is 998820811. The reversal of 998820808 is 808028899.

998820808 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 982320964 + 16499844 = 31342^2 + 4062^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62426293 + ... + 62426308.

Almost surely, 2^998820808 is an apocalyptic number.

It is an amenable number.

998820808 is a deficient number, since it is larger than the sum of its proper divisors (873968222).

998820808 is a wasteful number, since it uses less digits than its factorization.

998820808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124852607 (or 124852603 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 52.

The square root of 998820808 is about 31604.1264394383. The cubic root of 998820808 is about 999.6067813994.

The spelling of 998820808 in words is "nine hundred ninety-eight million, eight hundred twenty thousand, eight hundred eight".