11721882 has 16 divisors (see below), whose sum is σ = 23828832. Its totient is φ = 3843120.

The previous prime is 11721869. The next prime is 11721883. The reversal of 11721882 is 28812711.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11721883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15648 + ... + 16379.

It is an arithmetic number, because the mean of its divisors is an integer number (1489302).

Almost surely, 2^11721882 is an apocalyptic number.

11721882 is an abundant number, since it is smaller than the sum of its proper divisors (12106950).

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

11721882 is a wasteful number, since it uses less digits than its factorization.

11721882 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32093.

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

The square root of 11721882 is about 3423.7234117259. The cubic root of 11721882 is about 227.1603077565.

The spelling of 11721882 in words is "eleven million, seven hundred twenty-one thousand, eight hundred eighty-two".