9913320 has 128 divisors (see below), whose sum is σ = 33782400. Its totient is φ = 2585088.

The previous prime is 9913297. The next prime is 9913333. The reversal of 9913320 is 233199.

9913320 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 Harshad number since it is a multiple of its sum of digits (27).

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, 72292 + ... + 72428.

It is an arithmetic number, because the mean of its divisors is an integer number (263925).

Almost surely, 2^9913320 is an apocalyptic number.

9913320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9913320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16891200).

9913320 is an abundant number, since it is smaller than the sum of its proper divisors (23869080).

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

9913320 is a wasteful number, since it uses less digits than its factorization.

9913320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224 (or 214 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 27.

The square root of 9913320 is about 3148.5425199606. The cubic root of 9913320 is about 214.8191737199.

The spelling of 9913320 in words is "nine million, nine hundred thirteen thousand, three hundred twenty".