22716 has 18 divisors (see below), whose sum is σ = 57512. Its totient is φ = 7560.

The previous prime is 22709. The next prime is 22717. The reversal of 22716 is 61722.

It is a happy number.

22716 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22717) by changing a digit.

22716 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 280 + ... + 351.

2²²⁷¹⁶ is an apocalyptic number.

It is an amenable number.

22716 is an abundant number, since it is smaller than the sum of its proper divisors (34796).

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

22716 is a wasteful number, since it uses less digits than its factorization.

22716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641 (or 636 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 22716 is about 150.7182802450. The cubic root of 22716 is about 28.3211327709.

It can be divided in two parts, 227 and 16, that added together give a 5-th power (243 = 3⁵).

The spelling of 22716 in words is "twenty-two thousand, seven hundred sixteen".