9913288 has 96 divisors (see below), whose sum is σ = 25034400. Its totient is φ = 3659040.

The previous prime is 9913283. The next prime is 9913289. The reversal of 9913288 is 8823199.

Its product of digits (31104) is a multiple of the sum of its prime factors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 9913288.

It is not an unprimeable number, because it can be changed into a prime (9913283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 521743 + ... + 521761.

It is an arithmetic number, because the mean of its divisors is an integer number (260775).

Almost surely, 2^9913288 is an apocalyptic number.

9913288 is a gapful number since it is divisible by the number (98) 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 9913288, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12517200).

9913288 is an abundant number, since it is smaller than the sum of its proper divisors (15121112).

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

9913288 is a wasteful number, since it uses less digits than its factorization.

9913288 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72 (or 39 counting only the distinct ones).

The product of its digits is 31104, while the sum is 40.

The square root of 9913288 is about 3148.5374382402. The cubic root of 9913288 is about 214.8189425757.

It can be divided in two parts, 9913 and 288, that added together give a palindrome (10201).

The spelling of 9913288 in words is "nine million, nine hundred thirteen thousand, two hundred eighty-eight".