2208257 has 2 divisors, whose sum is σ = 2208258. Its totient is φ = 2208256.

The previous prime is 2208229. The next prime is 2208259. The reversal of 2208257 is 7528022.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1449616 + 758641 = 1204^2 + 871^2 .

It is a cyclic number.

It is not a de Polignac number, because 2208257 - 2¹² = 2204161 is a prime.

Together with 2208259, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2208259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104128 + 1104129.

It is an arithmetic number, because the mean of its divisors is an integer number (1104129).

2^2208257 is an apocalyptic number.

It is an amenable number.

2208257 is a deficient number, since it is larger than the sum of its proper divisors (1).

2208257 is an equidigital number, since it uses as much as digits as its factorization.

2208257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2240, while the sum is 26.

The square root of 2208257 is about 1486.0205247573. The cubic root of 2208257 is about 130.2216534185.

The spelling of 2208257 in words is "two million, two hundred eight thousand, two hundred fifty-seven".