863287 has 2 divisors, whose sum is σ = 863288. Its totient is φ = 863286.

The previous prime is 863279. The next prime is 863299. The reversal of 863287 is 782368.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 863287 - 2³ = 863279 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863087) 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 as a sum of consecutive naturals, namely, 431643 + 431644.

It is an arithmetic number, because the mean of its divisors is an integer number (431644).

2⁸⁶³²⁸⁷ is an apocalyptic number.

863287 is a deficient number, since it is larger than the sum of its proper divisors (1).

863287 is an equidigital number, since it uses as much as digits as its factorization.

863287 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 863287 is about 929.1323909971. The cubic root of 863287 is about 95.2178564415.

The spelling of 863287 in words is "eight hundred sixty-three thousand, two hundred eighty-seven".