2227217 has 4 divisors (see below), whose sum is σ = 2250276. Its totient is φ = 2204160.

The previous prime is 2227213. The next prime is 2227223. The reversal of 2227217 is 7127222.

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 1274641 + 952576 = 1129^2 + 976^2 .

It is a cyclic number.

It is not a de Polignac number, because 2227217 - 2² = 2227213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2227192 and 2227201.

It is not an unprimeable number, because it can be changed into a prime (2227213) 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, 11384 + ... + 11577.

It is an arithmetic number, because the mean of its divisors is an integer number (562569).

2^2227217 is an apocalyptic number.

It is an amenable number.

2227217 is a deficient number, since it is larger than the sum of its proper divisors (23059).

2227217 is an equidigital number, since it uses as much as digits as its factorization.

2227217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23058.

The product of its digits is 784, while the sum is 23.

The square root of 2227217 is about 1492.3863440812. The cubic root of 2227217 is about 130.5932843493.

The spelling of 2227217 in words is "two million, two hundred twenty-seven thousand, two hundred seventeen".