853659217 has 2 divisors, whose sum is σ = 853659218. Its totient is φ = 853659216.

The previous prime is 853659179. The next prime is 853659251. The reversal of 853659217 is 712956358.

853659217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 451095121 + 402564096 = 21239^2 + 20064^2 .

It is a cyclic number.

It is not a de Polignac number, because 853659217 - 2¹¹ = 853657169 is a prime.

It is not a weakly prime, because it can be changed into another prime (853653217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426829608 + 426829609.

It is an arithmetic number, because the mean of its divisors is an integer number (426829609).

Almost surely, 2^853659217 is an apocalyptic number.

It is an amenable number.

853659217 is a deficient number, since it is larger than the sum of its proper divisors (1).

853659217 is an equidigital number, since it uses as much as digits as its factorization.

853659217 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 453600, while the sum is 46.

The square root of 853659217 is about 29217.4471335194. The cubic root of 853659217 is about 948.6256088961.

The spelling of 853659217 in words is "eight hundred fifty-three million, six hundred fifty-nine thousand, two hundred seventeen".