808217 has 2 divisors, whose sum is σ = 808218. Its totient is φ = 808216.

The previous prime is 808211. The next prime is 808229. The reversal of 808217 is 712808.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 808201 + 16 = 899^2 + 4^2 .

It is a cyclic number.

It is not a de Polignac number, because 808217 - 2⁶ = 808153 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (808211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 404108 + 404109.

It is an arithmetic number, because the mean of its divisors is an integer number (404109).

2⁸⁰⁸²¹⁷ is an apocalyptic number.

It is an amenable number.

808217 is a deficient number, since it is larger than the sum of its proper divisors (1).

808217 is an equidigital number, since it uses as much as digits as its factorization.

808217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

The square root of 808217 is about 899.0088987324. The cubic root of 808217 is about 93.1485274548.

The spelling of 808217 in words is "eight hundred eight thousand, two hundred seventeen".