2208397 has 2 divisors, whose sum is σ = 2208398. Its totient is φ = 2208396.

The previous prime is 2208377. The next prime is 2208407. The reversal of 2208397 is 7938022.

2208397 is nontrivially palindromic in base 9.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2172676 + 35721 = 1474^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 2208397 - 2¹⁵ = 2175629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2208337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1104198 + 1104199.

It is an arithmetic number, because the mean of its divisors is an integer number (1104199).

2^2208397 is an apocalyptic number.

It is an amenable number.

2208397 is a deficient number, since it is larger than the sum of its proper divisors (1).

2208397 is an equidigital number, since it uses as much as digits as its factorization.

2208397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 2208397 is about 1486.0676296858. The cubic root of 2208397 is about 130.2244053093.

The spelling of 2208397 in words is "two million, two hundred eight thousand, three hundred ninety-seven".