855017 has 6 divisors (see below), whose sum is σ = 872298. Its totient is φ = 838032.

The previous prime is 854999. The next prime is 855031. The reversal of 855017 is 710558.

It can be written as a sum of positive squares in only one way, i.e., 755161 + 99856 = 869^2 + 316^2 .

It is not a de Polignac number, because 855017 - 2¹⁴ = 838633 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6173 + ... + 6309.

It is an arithmetic number, because the mean of its divisors is an integer number (145383).

2⁸⁵⁵⁰¹⁷ is an apocalyptic number.

It is an amenable number.

855017 is a deficient number, since it is larger than the sum of its proper divisors (17281).

855017 is an equidigital number, since it uses as much as digits as its factorization.

855017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 295 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 26.

The square root of 855017 is about 924.6712929469. The cubic root of 855017 is about 94.9128286238.

The spelling of 855017 in words is "eight hundred fifty-five thousand, seventeen".