11722716 has 18 divisors (see below), whose sum is σ = 29632512. Its totient is φ = 3907560.

The previous prime is 11722691. The next prime is 11722717. The reversal of 11722716 is 61722711.

It is a tau number, because it is divible by the number of its divisors (18).

It is a self number, because there is not a number n which added to its sum of digits gives 11722716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11722717) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 162780 + ... + 162851.

Almost surely, 2^11722716 is an apocalyptic number.

It is an amenable number.

11722716 is an abundant number, since it is smaller than the sum of its proper divisors (17909796).

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

11722716 is a wasteful number, since it uses less digits than its factorization.

11722716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325641 (or 325636 counting only the distinct ones).

The product of its digits is 1176, while the sum is 27.

The square root of 11722716 is about 3423.8452067814. The cubic root of 11722716 is about 227.1656950371.

The spelling of 11722716 in words is "eleven million, seven hundred twenty-two thousand, seven hundred sixteen".