990598108 has 6 divisors (see below), whose sum is σ = 1733546696. Its totient is φ = 495299052.

The previous prime is 990598073. The next prime is 990598121. The reversal of 990598108 is 801895099.

It is a happy number.

It is a super-2 number, since 2×990598108² = 1962569223146359328, which contains 22 as substring.

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 as a sum of consecutive naturals, namely, 123824760 + ... + 123824767.

Almost surely, 2^990598108 is an apocalyptic number.

It is an amenable number.

990598108 is a deficient number, since it is larger than the sum of its proper divisors (742948588).

990598108 is a wasteful number, since it uses less digits than its factorization.

990598108 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247649531 (or 247649529 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 49.

The square root of 990598108 is about 31473.7685700330. The cubic root of 990598108 is about 996.8561626443.

The spelling of 990598108 in words is "nine hundred ninety million, five hundred ninety-eight thousand, one hundred eight".