998227896 has 64 divisors (see below), whose sum is σ = 2651201280. Its totient is φ = 312122880.

The previous prime is 998227817. The next prime is 998227897. The reversal of 998227896 is 698722899.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (998227897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122955 + ... + 130821.

It is an arithmetic number, because the mean of its divisors is an integer number (41425020).

Almost surely, 2^998227896 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 998227896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1325600640).

998227896 is an abundant number, since it is smaller than the sum of its proper divisors (1652973384).

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

998227896 is a wasteful number, since it uses less digits than its factorization.

998227896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8204 (or 8200 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 60.

The square root of 998227896 is about 31594.7447528857. The cubic root of 998227896 is about 999.4089493947.

The spelling of 998227896 in words is "nine hundred ninety-eight million, two hundred twenty-seven thousand, eight hundred ninety-six".