981998592 has 88 divisors (see below), whose sum is σ = 2627463696. Its totient is φ = 326074368.

The previous prime is 981998579. The next prime is 981998627. The reversal of 981998592 is 295899189.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1145428 + ... + 1146284.

It is an arithmetic number, because the mean of its divisors is an integer number (29857542).

Almost surely, 2^981998592 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 981998592, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1313731848).

981998592 is an abundant number, since it is smaller than the sum of its proper divisors (1645465104).

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

981998592 is a wasteful number, since it uses less digits than its factorization.

981998592 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1253 (or 1235 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 60.

The square root of 981998592 is about 31336.8567664340. The cubic root of 981998592 is about 993.9631605708.

The spelling of 981998592 in words is "nine hundred eighty-one million, nine hundred ninety-eight thousand, five hundred ninety-two".