863279 has 2 divisors, whose sum is σ = 863280. Its totient is φ = 863278.

The previous prime is 863251. The next prime is 863287. The reversal of 863279 is 972368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 863279 - 2¹⁶ = 797743 is a prime.

It is a Chen prime.

It is a d-powerful number, because it can be written as 8⁵ + 6² + 2⁷ + 3⁵ + 7⁷ + 9⁴ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (863299) 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, 431639 + 431640.

It is an arithmetic number, because the mean of its divisors is an integer number (431640).

2⁸⁶³²⁷⁹ is an apocalyptic number.

863279 is a deficient number, since it is larger than the sum of its proper divisors (1).

863279 is an equidigital number, since it uses as much as digits as its factorization.

863279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18144, while the sum is 35.

The square root of 863279 is about 929.1280858956. The cubic root of 863279 is about 95.2175623156.

The spelling of 863279 in words is "eight hundred sixty-three thousand, two hundred seventy-nine".