2224657 has 2 divisors, whose sum is σ = 2224658. Its totient is φ = 2224656.

The previous prime is 2224633. The next prime is 2224661. The reversal of 2224657 is 7564222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1640961 + 583696 = 1281^2 + 764^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2224657 is a prime.

It is not a weakly prime, because it can be changed into another prime (2224627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112328 + 1112329.

It is an arithmetic number, because the mean of its divisors is an integer number (1112329).

2^2224657 is an apocalyptic number.

It is an amenable number.

2224657 is a deficient number, since it is larger than the sum of its proper divisors (1).

2224657 is an equidigital number, since it uses as much as digits as its factorization.

2224657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6720, while the sum is 28.

The square root of 2224657 is about 1491.5284107251. The cubic root of 2224657 is about 130.5432298073.

Adding to 2224657 its reverse (7564222), we get a palindrome (9788879).

The spelling of 2224657 in words is "two million, two hundred twenty-four thousand, six hundred fifty-seven".