11217882 has 64 divisors (see below), whose sum is σ = 26046720. Its totient is φ = 3212352.

The previous prime is 11217881. The next prime is 11217893. The reversal of 11217882 is 28871211.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11217881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 303168 + ... + 303204.

It is an arithmetic number, because the mean of its divisors is an integer number (406980).

Almost surely, 2^11217882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11217882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13023360).

11217882 is an abundant number, since it is smaller than the sum of its proper divisors (14828838).

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

11217882 is a wasteful number, since it uses less digits than its factorization.

11217882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104 (or 78 counting only the distinct ones).

The product of its digits is 1792, while the sum is 30.

The square root of 11217882 is about 3349.3106753480. The cubic root of 11217882 is about 223.8567988848.

The spelling of 11217882 in words is "eleven million, two hundred seventeen thousand, eight hundred eighty-two".