805863 has 8 divisors (see below), whose sum is σ = 1099648. Its totient is φ = 524664.

The previous prime is 805859. The next prime is 805867. The reversal of 805863 is 368508.

It is an interprime number because it is at equal distance from previous prime (805859) and next prime (805867).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 805863 - 2² = 805859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 805863.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (805867) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2995 + ... + 3252.

It is an arithmetic number, because the mean of its divisors is an integer number (137456).

2⁸⁰⁵⁸⁶³ is an apocalyptic number.

805863 is a deficient number, since it is larger than the sum of its proper divisors (293785).

805863 is a wasteful number, since it uses less digits than its factorization.

805863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6293.

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 805863 is about 897.6987245173. The cubic root of 805863 is about 93.0580052060.

The spelling of 805863 in words is "eight hundred five thousand, eight hundred sixty-three".