863263 has 4 divisors (see below), whose sum is σ = 866880. Its totient is φ = 859648.

The previous prime is 863251. The next prime is 863279. The reversal of 863263 is 362368.

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 863263 - 2⁵ = 863231 is a prime.

It is a Duffinian number.

863263 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863363) 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, 1423 + ... + 1936.

It is an arithmetic number, because the mean of its divisors is an integer number (216720).

2⁸⁶³²⁶³ is an apocalyptic number.

863263 is a deficient number, since it is larger than the sum of its proper divisors (3617).

863263 is a wasteful number, since it uses less digits than its factorization.

863263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616.

The product of its digits is 5184, while the sum is 28.

The square root of 863263 is about 929.1194756327. The cubic root of 863263 is about 95.2169740583.

The spelling of 863263 in words is "eight hundred sixty-three thousand, two hundred sixty-three".