22276217 has 4 divisors (see below), whose sum is σ = 22653840. Its totient is φ = 21898596.

The previous prime is 22276207. The next prime is 22276229. The reversal of 22276217 is 71267222.

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.

It is a cyclic number.

It is not a de Polignac number, because 22276217 - 2⁴ = 22276201 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22276217.

It is not an unprimeable number, because it can be changed into a prime (22276207) 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, 188723 + ... + 188840.

It is an arithmetic number, because the mean of its divisors is an integer number (5663460).

Almost surely, 2^22276217 is an apocalyptic number.

It is an amenable number.

22276217 is a deficient number, since it is larger than the sum of its proper divisors (377623).

22276217 is an equidigital number, since it uses as much as digits as its factorization.

22276217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 377622.

The product of its digits is 4704, while the sum is 29.

The square root of 22276217 is about 4719.7687443348. The cubic root of 22276217 is about 281.3717423894.

The spelling of 22276217 in words is "twenty-two million, two hundred seventy-six thousand, two hundred seventeen".