2228717 has 4 divisors (see below), whose sum is σ = 2359836. Its totient is φ = 2097600.

The previous prime is 2228713. The next prime is 2228731. The reversal of 2228717 is 7178222.

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 1371241 + 857476 = 1171^2 + 926^2 .

It is a cyclic number.

It is not a de Polignac number, because 2228717 - 2² = 2228713 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 2228717.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2228711) 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, 65534 + ... + 65567.

It is an arithmetic number, because the mean of its divisors is an integer number (589959).

2^2228717 is an apocalyptic number.

It is an amenable number.

2228717 is a deficient number, since it is larger than the sum of its proper divisors (131119).

2228717 is a wasteful number, since it uses less digits than its factorization.

2228717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131118.

The product of its digits is 3136, while the sum is 29.

The square root of 2228717 is about 1492.8888103271. Note that the first 4 decimals coincide. The cubic root of 2228717 is about 130.6225953633.

The spelling of 2228717 in words is "two million, two hundred twenty-eight thousand, seven hundred seventeen".