9981792 has 60 divisors (see below), whose sum is σ = 29363796. Its totient is φ = 3326400.

The previous prime is 9981787. The next prime is 9981799. The reversal of 9981792 is 2971899.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9981799) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 667 + ... + 4517.

Almost surely, 2^9981792 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 9981792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14681898).

9981792 is an abundant number, since it is smaller than the sum of its proper divisors (19382004).

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

9981792 is a wasteful number, since it uses less digits than its factorization.

9981792 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3873 (or 3856 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 9981792 is about 3159.3974108997. The cubic root of 9981792 is about 215.3126297375.

The spelling of 9981792 in words is "nine million, nine hundred eighty-one thousand, seven hundred ninety-two".