998916808 has 8 divisors (see below), whose sum is σ = 1872969030. Its totient is φ = 499458400.

The previous prime is 998916799. The next prime is 998916817. The reversal of 998916808 is 808619899.

It is an interprime number because it is at equal distance from previous prime (998916799) and next prime (998916817).

It can be written as a sum of positive squares in only one way, i.e., 945070564 + 53846244 = 30742^2 + 7338^2 .

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

It is an unprimeable number.

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

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 62432293 + ... + 62432308.

Almost surely, 2^998916808 is an apocalyptic number.

It is an amenable number.

998916808 is a deficient number, since it is larger than the sum of its proper divisors (874052222).

998916808 is a wasteful number, since it uses less digits than its factorization.

998916808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124864607 (or 124864603 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 58.

The square root of 998916808 is about 31605.6451919590. The cubic root of 998916808 is about 999.6388055543.

The spelling of 998916808 in words is "nine hundred ninety-eight million, nine hundred sixteen thousand, eight hundred eight".