9907120 has 40 divisors (see below), whose sum is σ = 23663664. Its totient is φ = 3854592.

The previous prime is 9907109. The next prime is 9907123. The reversal of 9907120 is 217099.

9907120 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (9907123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1287 + ... + 4633.

Almost surely, 2^9907120 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 9907120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11831832).

9907120 is an abundant number, since it is smaller than the sum of its proper divisors (13756544).

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

9907120 is a wasteful number, since it uses less digits than its factorization.

9907120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3397 (or 3391 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 9907120 is about 3147.5577834251. The cubic root of 9907120 is about 214.7743802288.

The spelling of 9907120 in words is "nine million, nine hundred seven thousand, one hundred twenty".