860287 has 4 divisors (see below), whose sum is σ = 883576. Its totient is φ = 837000.

The previous prime is 860267. The next prime is 860291. The reversal of 860287 is 782068.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 860287 - 2¹¹ = 858239 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 (860257) 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 3 ways as a sum of consecutive naturals, for example, 11589 + ... + 11662.

It is an arithmetic number, because the mean of its divisors is an integer number (220894).

2⁸⁶⁰²⁸⁷ is an apocalyptic number.

860287 is a deficient number, since it is larger than the sum of its proper divisors (23289).

860287 is a wasteful number, since it uses less digits than its factorization.

860287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23288.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 860287 is about 927.5165766713. The cubic root of 860287 is about 95.1074315576.

The spelling of 860287 in words is "eight hundred sixty thousand, two hundred eighty-seven".