998705088 has 84 divisors (see below), whose sum is σ = 2889051880. Its totient is φ = 329826816.

The previous prime is 998705047. The next prime is 998705107. The reversal of 998705088 is 880507899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54831 + ... + 70737.

Almost surely, 2^998705088 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 998705088, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1444525940).

998705088 is an abundant number, since it is smaller than the sum of its proper divisors (1890346792).

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

998705088 is a wasteful number, since it uses less digits than its factorization.

998705088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16034 (or 16021 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 54.

The square root of 998705088 is about 31602.2956128190. The cubic root of 998705088 is about 999.5681762217.

The spelling of 998705088 in words is "nine hundred ninety-eight million, seven hundred five thousand, eighty-eight".