9997827792 has 20 divisors (see below), whose sum is σ = 25827721920. Its totient is φ = 3332609248.

The previous prime is 9997827781. The next prime is 9997827811. The reversal of 9997827792 is 2977287999.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 104143992 + ... + 104144087.

It is an arithmetic number, because the mean of its divisors is an integer number (1291386096).

Almost surely, 2^9997827792 is an apocalyptic number.

It is an amenable number.

9997827792 is an abundant number, since it is smaller than the sum of its proper divisors (15829894128).

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

9997827792 is a wasteful number, since it uses less digits than its factorization.

9997827792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208288090 (or 208288084 counting only the distinct ones).

The product of its digits is 72013536, while the sum is 69.

The square root of 9997827792 is about 99989.1383701250. The cubic root of 9997827792 is about 2154.2786827264.

The spelling of 9997827792 in words is "nine billion, nine hundred ninety-seven million, eight hundred twenty-seven thousand, seven hundred ninety-two".