11887722 has 80 divisors (see below), whose sum is σ = 33244992. Its totient is φ = 3084480.

The previous prime is 11887721. The next prime is 11887727. The reversal of 11887722 is 22778811.

It is a happy number.

11887722 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a zygodrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (11887721) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 11998 + ... + 12950.

Almost surely, 2^11887722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11887722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16622496).

11887722 is an abundant number, since it is smaller than the sum of its proper divisors (21357270).

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

11887722 is a wasteful number, since it uses less digits than its factorization.

11887722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985 (or 976 counting only the distinct ones).

The product of its digits is 12544, while the sum is 36.

The square root of 11887722 is about 3447.8575956672. The cubic root of 11887722 is about 228.2265753199.

The spelling of 11887722 in words is "eleven million, eight hundred eighty-seven thousand, seven hundred twenty-two".