998103808 has 72 divisors (see below), whose sum is σ = 2153582928. Its totient is φ = 458944512.

The previous prime is 998103737. The next prime is 998103833. The reversal of 998103808 is 808301899.

It is a super-2 number, since 2×998103808² = 1992422423088201728, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 1473966 + ... + 1474642.

It is an arithmetic number, because the mean of its divisors is an integer number (29910874).

Almost surely, 2^998103808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 998103808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1076791464).

998103808 is an abundant number, since it is smaller than the sum of its proper divisors (1155479120).

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

998103808 is a wasteful number, since it uses less digits than its factorization.

998103808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149 (or 1135 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 46.

The square root of 998103808 is about 31592.7809475519. The cubic root of 998103808 is about 999.3675360737.

The spelling of 998103808 in words is "nine hundred ninety-eight million, one hundred three thousand, eight hundred eight".