9791887392 has 384 divisors, whose sum is σ = 34871316480. Its totient is φ = 2609418240.

The previous prime is 9791887349. The next prime is 9791887403. The reversal of 9791887392 is 2937881979.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13468533 + ... + 13469259.

It is an arithmetic number, because the mean of its divisors is an integer number (90810720).

Almost surely, 2^9791887392 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 9791887392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17435658240).

9791887392 is an abundant number, since it is smaller than the sum of its proper divisors (25079429088).

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

9791887392 is a wasteful number, since it uses less digits than its factorization.

9791887392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 887 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The square root of 9791887392 is about 98953.9660246117. The cubic root of 9791887392 is about 2139.3842954597.

The spelling of 9791887392 in words is "nine billion, seven hundred ninety-one million, eight hundred eighty-seven thousand, three hundred ninety-two".