863163 has 16 divisors (see below), whose sum is σ = 1461760. Its totient is φ = 493128.

The previous prime is 863153. The next prime is 863179. The reversal of 863163 is 361368.

It is not a de Polignac number, because 863163 - 2⁵ = 863131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (863123) 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 15 ways as a sum of consecutive naturals, for example, 2095 + ... + 2472.

It is an arithmetic number, because the mean of its divisors is an integer number (91360).

2⁸⁶³¹⁶³ is an apocalyptic number.

863163 is a deficient number, since it is larger than the sum of its proper divisors (598597).

863163 is a wasteful number, since it uses less digits than its factorization.

863163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4583 (or 4577 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

The square root of 863163 is about 929.0656596818. The cubic root of 863163 is about 95.2132972858.

It can be divided in two parts, 86 and 3163, that added together give a square (3249 = 57²).

The spelling of 863163 in words is "eight hundred sixty-three thousand, one hundred sixty-three".