805485 has 8 divisors (see below), whose sum is σ = 1288800. Its totient is φ = 429584.

The previous prime is 805471. The next prime is 805487. The reversal of 805485 is 584508.

805485 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 a cyclic number.

It is not a de Polignac number, because 805485 - 2⁶ = 805421 is a prime.

It is an Ulam number.

805485 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 805485.

It is not an unprimeable number, because it can be changed into a prime (805487) 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, 26835 + ... + 26864.

It is an arithmetic number, because the mean of its divisors is an integer number (161100).

2⁸⁰⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

805485 is a deficient number, since it is larger than the sum of its proper divisors (483315).

805485 is a wasteful number, since it uses less digits than its factorization.

805485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53707.

The product of its (nonzero) digits is 6400, while the sum is 30.

The square root of 805485 is about 897.4881614818. The cubic root of 805485 is about 93.0434529280.

It can be divided in two parts, 80 and 5485, that added together give a triangular number (5565 = T₁₀₅).

The spelling of 805485 in words is "eight hundred five thousand, four hundred eighty-five".