2417221 has 2 divisors, whose sum is σ = 2417222. Its totient is φ = 2417220.

The previous prime is 2417203. The next prime is 2417243. The reversal of 2417221 is 1227142.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2102500 + 314721 = 1450^2 + 561^2 .

It is a cyclic number.

It is not a de Polignac number, because 2417221 - 2⁹ = 2416709 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2417201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1208610 + 1208611.

It is an arithmetic number, because the mean of its divisors is an integer number (1208611).

2^2417221 is an apocalyptic number.

It is an amenable number.

2417221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2417221 is an equidigital number, since it uses as much as digits as its factorization.

2417221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 19.

The square root of 2417221 is about 1554.7414576064. The cubic root of 2417221 is about 134.2060578154.

The spelling of 2417221 in words is "two million, four hundred seventeen thousand, two hundred twenty-one".