998156796 has 96 divisors (see below), whose sum is σ = 2874482688. Its totient is φ = 262517760.

The previous prime is 998156777. The next prime is 998156801. The reversal of 998156796 is 697651899.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 471781 + ... + 473891.

It is an arithmetic number, because the mean of its divisors is an integer number (29942528).

Almost surely, 2^998156796 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 998156796, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1437241344).

998156796 is an abundant number, since it is smaller than the sum of its proper divisors (1876325892).

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

998156796 is a wasteful number, since it uses less digits than its factorization.

998156796 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2571 (or 2569 counting only the distinct ones).

The product of its digits is 7348320, while the sum is 60.

The square root of 998156796 is about 31593.6195457247. The cubic root of 998156796 is about 999.3852207906.

The spelling of 998156796 in words is "nine hundred ninety-eight million, one hundred fifty-six thousand, seven hundred ninety-six".