22772851 has 4 divisors (see below), whose sum is σ = 22782400. Its totient is φ = 22763304.

The previous prime is 22772837. The next prime is 22772857. The reversal of 22772851 is 15827722.

It is a semiprime because it is the product of two primes, 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 22772851 - 2²³ = 14384243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22772857) 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, 2185 + ... + 7093.

It is an arithmetic number, because the mean of its divisors is an integer number (5695600).

Almost surely, 2^22772851 is an apocalyptic number.

22772851 is a deficient number, since it is larger than the sum of its proper divisors (9549).

22772851 is an equidigital number, since it uses as much as digits as its factorization.

22772851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9548.

The product of its digits is 15680, while the sum is 34.

The square root of 22772851 is about 4772.0908415494. The cubic root of 22772851 is about 283.4473938308.

The spelling of 22772851 in words is "twenty-two million, seven hundred seventy-two thousand, eight hundred fifty-one".