23222765 has 16 divisors (see below), whose sum is σ = 30527280. Its totient is φ = 16880640.

The previous prime is 23222741. The next prime is 23222767. The reversal of 23222765 is 56722232.

It can be written as a sum of positive squares in 8 ways, for example, as 4 + 23222761 = 2^2 + 4819^2 .

It is not a de Polignac number, because 23222765 - 2⁶ = 23222701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23222767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2246 + ... + 7175.

It is an arithmetic number, because the mean of its divisors is an integer number (1907955).

Almost surely, 2^23222765 is an apocalyptic number.

It is an amenable number.

23222765 is a deficient number, since it is larger than the sum of its proper divisors (7304515).

23222765 is a wasteful number, since it uses less digits than its factorization.

23222765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9472.

The product of its digits is 10080, while the sum is 29.

The square root of 23222765 is about 4819.0004150238. Note that the first 3 decimals coincide. The cubic root of 23222765 is about 285.3018859217.

Adding to 23222765 its reverse (56722232), we get a palindrome (79944997).

The spelling of 23222765 in words is "twenty-three million, two hundred twenty-two thousand, seven hundred sixty-five".