9923835272 has 128 divisors (see below), whose sum is σ = 21649420800. Its totient is φ = 4223950848.

The previous prime is 9923835269. The next prime is 9923835347. The reversal of 9923835272 is 2725383299.

It is a self number, because there is not a number n which added to its sum of digits gives 9923835272.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 31705388 + ... + 31705700.

It is an arithmetic number, because the mean of its divisors is an integer number (169136100).

Almost surely, 2^9923835272 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 9923835272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10824710400).

9923835272 is an abundant number, since it is smaller than the sum of its proper divisors (11725585528).

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

9923835272 is a wasteful number, since it uses less digits than its factorization.

9923835272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 655 (or 651 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 50.

The square root of 9923835272 is about 99618.4484520814. The cubic root of 9923835272 is about 2148.9510132141.

The spelling of 9923835272 in words is "nine billion, nine hundred twenty-three million, eight hundred thirty-five thousand, two hundred seventy-two".