853217 has 2 divisors, whose sum is σ = 853218. Its totient is φ = 853216.

The previous prime is 853211. The next prime is 853241. The reversal of 853217 is 712358.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 839056 + 14161 = 916^2 + 119^2 .

It is a cyclic number.

It is not a de Polignac number, because 853217 - 2¹⁴ = 836833 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (853211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426608 + 426609.

It is an arithmetic number, because the mean of its divisors is an integer number (426609).

2⁸⁵³²¹⁷ is an apocalyptic number.

It is an amenable number.

853217 is a deficient number, since it is larger than the sum of its proper divisors (1).

853217 is an equidigital number, since it uses as much as digits as its factorization.

853217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1680, while the sum is 26.

The square root of 853217 is about 923.6974612935. The cubic root of 853217 is about 94.8461776608.

The spelling of 853217 in words is "eight hundred fifty-three thousand, two hundred seventeen".