998089508 has 24 divisors (see below), whose sum is σ = 1962800448. Its totient is φ = 440627616.

The previous prime is 998089459. The next prime is 998089511. The reversal of 998089508 is 805980899.

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, 416066 + ... + 418457.

It is an arithmetic number, because the mean of its divisors is an integer number (81783352).

Almost surely, 2^998089508 is an apocalyptic number.

It is an amenable number.

998089508 is a deficient number, since it is larger than the sum of its proper divisors (964710940).

998089508 is a wasteful number, since it uses less digits than its factorization.

998089508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834563 (or 834561 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 56.

The square root of 998089508 is about 31592.5546292160. The cubic root of 998089508 is about 999.3627633490.

The spelling of 998089508 in words is "nine hundred ninety-eight million, eighty-nine thousand, five hundred eight".