998238792 has 32 divisors (see below), whose sum is σ = 2529787680. Its totient is φ = 328187520.

The previous prime is 998238779. The next prime is 998238809. The reversal of 998238792 is 297832899.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283134 + ... + 286637.

It is an arithmetic number, because the mean of its divisors is an integer number (79055865).

Almost surely, 2^998238792 is an apocalyptic number.

It is an amenable number.

998238792 is an abundant number, since it is smaller than the sum of its proper divisors (1531548888).

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

998238792 is a wasteful number, since it uses less digits than its factorization.

998238792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569853 (or 569849 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 57.

The square root of 998238792 is about 31594.9171861551. The cubic root of 998238792 is about 999.4125856786.

The spelling of 998238792 in words is "nine hundred ninety-eight million, two hundred thirty-eight thousand, seven hundred ninety-two".