22768769 has 4 divisors (see below), whose sum is σ = 22779696. Its totient is φ = 22757844.

The previous prime is 22768723. The next prime is 22768771. The reversal of 22768769 is 96786722.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22768769 - 2²⁴ = 5991553 is a prime.

It is a super-2 number, since 2×22768769² = 1036833683550722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22768469) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1259 + ... + 6864.

It is an arithmetic number, because the mean of its divisors is an integer number (5694924).

Almost surely, 2^22768769 is an apocalyptic number.

It is an amenable number.

22768769 is a deficient number, since it is larger than the sum of its proper divisors (10927).

22768769 is an equidigital number, since it uses as much as digits as its factorization.

22768769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10926.

The product of its digits is 508032, while the sum is 47.

The square root of 22768769 is about 4771.6631272545. The cubic root of 22768769 is about 283.4304569762.

The spelling of 22768769 in words is "twenty-two million, seven hundred sixty-eight thousand, seven hundred sixty-nine".