9997225992 has 96 divisors (see below), whose sum is σ = 29779102080. Its totient is φ = 3010608000.

The previous prime is 9997225967. The next prime is 9997225993. The reversal of 9997225992 is 2995227999.

It is not an unprimeable number, because it can be changed into a prime (9997225993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69634 + ... + 157617.

It is an arithmetic number, because the mean of its divisors is an integer number (310198980).

Almost surely, 2^9997225992 is an apocalyptic number.

It is an amenable number.

9997225992 is an abundant number, since it is smaller than the sum of its proper divisors (19781876088).

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

9997225992 is a wasteful number, since it uses less digits than its factorization.

9997225992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227323 (or 227316 counting only the distinct ones).

The product of its digits is 16533720, while the sum is 63.

The square root of 9997225992 is about 99986.1289979765. The cubic root of 9997225992 is about 2154.2354576395.

The spelling of 9997225992 in words is "nine billion, nine hundred ninety-seven million, two hundred twenty-five thousand, nine hundred ninety-two".