22776 has 32 divisors (see below), whose sum is σ = 62160. Its totient is φ = 6912.

The previous prime is 22769. The next prime is 22777. The reversal of 22776 is 67722.

22776 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

22776 is an esthetic number in base 5, because in such base its adjacent digits differ by 1.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22777) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276 + ... + 348.

2²²⁷⁷⁶ is an apocalyptic number.

22776 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31080).

22776 is an abundant number, since it is smaller than the sum of its proper divisors (39384).

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

22776 is a wasteful number, since it uses less digits than its factorization.

22776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95 (or 91 counting only the distinct ones).

The product of its digits is 1176, while the sum is 24.

The square root of 22776 is about 150.9171958393. The cubic root of 22776 is about 28.3460458140.

22776 divided by its sum of digits (24) gives a palindrome (949).

It can be divided in two parts, 227 and 76, that added together give a palindrome (303).

The spelling of 22776 in words is "twenty-two thousand, seven hundred seventy-six".