998086788 has 36 divisors (see below), whose sum is σ = 2604329728. Its totient is φ = 321963120.

The previous prime is 998086787. The next prime is 998086807. The reversal of 998086788 is 887680899.

It is a tau number, because it is divible by the number of its divisors (36).

It is not an unprimeable number, because it can be changed into a prime (998086787) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 446056 + ... + 448287.

Almost surely, 2^998086788 is an apocalyptic number.

It is an amenable number.

998086788 is an abundant number, since it is smaller than the sum of its proper divisors (1606242940).

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

998086788 is a wasteful number, since it uses less digits than its factorization.

998086788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894384 (or 894379 counting only the distinct ones).

The product of its (nonzero) digits is 13934592, while the sum is 63.

The square root of 998086788 is about 31592.5115810693. The cubic root of 998086788 is about 999.3618555249.

The spelling of 998086788 in words is "nine hundred ninety-eight million, eighty-six thousand, seven hundred eighty-eight".