9509880 has 128 divisors (see below), whose sum is σ = 31046400. Its totient is φ = 2322432.

The previous prime is 9509873. The next prime is 9509897. The reversal of 9509880 is 889059.

9509880 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9509880² = 180875635228800, which contains 22 as substring.

It is a congruent number.

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, 97992 + ... + 98088.

It is an arithmetic number, because the mean of its divisors is an integer number (242550).

Almost surely, 2^9509880 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 9509880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15523200).

9509880 is an abundant number, since it is smaller than the sum of its proper divisors (21536520).

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

9509880 is a wasteful number, since it uses less digits than its factorization.

9509880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173 (or 169 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 9509880 is about 3083.8093326274. The cubic root of 9509880 is about 211.8645747170.

The spelling of 9509880 in words is "nine million, five hundred nine thousand, eight hundred eighty".