998881716 has 96 divisors (see below), whose sum is σ = 2828528640. Its totient is φ = 267830784.

The previous prime is 998881687. The next prime is 998881727. The reversal of 998881716 is 617188899.

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 in 31 ways as a sum of consecutive naturals, for example, 631815 + ... + 633393.

It is an arithmetic number, because the mean of its divisors is an integer number (29463840).

Almost surely, 2^998881716 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 998881716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1414264320).

998881716 is an abundant number, since it is smaller than the sum of its proper divisors (1829646924).

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

998881716 is a wasteful number, since it uses less digits than its factorization.

998881716 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2053 (or 2051 counting only the distinct ones).

The product of its digits is 1741824, while the sum is 57.

The square root of 998881716 is about 31605.0900330944. The cubic root of 998881716 is about 999.6270996293.

The spelling of 998881716 in words is "nine hundred ninety-eight million, eight hundred eighty-one thousand, seven hundred sixteen".