867285 has 12 divisors (see below), whose sum is σ = 1503372. Its totient is φ = 462528.

The previous prime is 867281. The next prime is 867301. The reversal of 867285 is 582768.

It can be written as a sum of positive squares in 2 ways, for example, as 439569 + 427716 = 663^2 + 654^2 .

It is not a de Polignac number, because 867285 - 2² = 867281 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (867281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9592 + ... + 9681.

It is an arithmetic number, because the mean of its divisors is an integer number (125281).

2⁸⁶⁷²⁸⁵ is an apocalyptic number.

It is an amenable number.

867285 is a deficient number, since it is larger than the sum of its proper divisors (636087).

867285 is a wasteful number, since it uses less digits than its factorization.

867285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19284 (or 19281 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 867285 is about 931.2813753104. The cubic root of 867285 is about 95.3646190807.

The spelling of 867285 in words is "eight hundred sixty-seven thousand, two hundred eighty-five".