800855 has 8 divisors (see below), whose sum is σ = 1048464. Its totient is φ = 582400.

The previous prime is 800801. The next prime is 800861. The reversal of 800855 is 558008.

800855 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 800855 - 2⁸ = 800599 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7226 + ... + 7335.

It is an arithmetic number, because the mean of its divisors is an integer number (131058).

2⁸⁰⁰⁸⁵⁵ is an apocalyptic number.

800855 is a deficient number, since it is larger than the sum of its proper divisors (247609).

800855 is a wasteful number, since it uses less digits than its factorization.

800855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14577.

The product of its (nonzero) digits is 1600, while the sum is 26.

The square root of 800855 is about 894.9050228935. The cubic root of 800855 is about 92.8648362180.

The spelling of 800855 in words is "eight hundred thousand, eight hundred fifty-five".