800685 has 24 divisors (see below), whose sum is σ = 1441440. Its totient is φ = 426384.

The previous prime is 800677. The next prime is 800687. The reversal of 800685 is 586008.

800685 is an esthetic number in base 7, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 800685 - 2³ = 800677 is a prime.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (800687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 886 + ... + 1544.

It is an arithmetic number, because the mean of its divisors is an integer number (60060).

2⁸⁰⁰⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

800685 is a deficient number, since it is larger than the sum of its proper divisors (640755).

800685 is an equidigital number, since it uses as much as digits as its factorization.

800685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 679 (or 667 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 800685 is about 894.8100357059. The cubic root of 800685 is about 92.8582648498.

It can be divided in two parts, 800 and 685, that added together give a triangular number (1485 = T₅₄).

The spelling of 800685 in words is "eight hundred thousand, six hundred eighty-five".