22768685 has 4 divisors (see below), whose sum is σ = 27322428. Its totient is φ = 18214944.

The previous prime is 22768679. The next prime is 22768723. The reversal of 22768685 is 58686722.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 13756681 + 9012004 = 3709^2 + 3002^2 .

It is a cyclic number.

It is not a de Polignac number, because 22768685 - 2¹² = 22764589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2276864 + ... + 2276873.

It is an arithmetic number, because the mean of its divisors is an integer number (6830607).

Almost surely, 2^22768685 is an apocalyptic number.

It is an amenable number.

22768685 is a deficient number, since it is larger than the sum of its proper divisors (4553743).

22768685 is an equidigital number, since it uses as much as digits as its factorization.

22768685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4553742.

The product of its digits is 322560, while the sum is 44.

The square root of 22768685 is about 4771.6543252838. The cubic root of 22768685 is about 283.4301084259.

The spelling of 22768685 in words is "twenty-two million, seven hundred sixty-eight thousand, six hundred eighty-five".