854805 has 24 divisors (see below), whose sum is σ = 1592352. Its totient is φ = 390432.

The previous prime is 854801. The next prime is 854807. The reversal of 854805 is 508458.

It is not a de Polignac number, because 854805 - 2² = 854801 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854801) 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, 154 + ... + 1316.

It is an arithmetic number, because the mean of its divisors is an integer number (66348).

2⁸⁵⁴⁸⁰⁵ is an apocalyptic number.

It is an amenable number.

854805 is a deficient number, since it is larger than the sum of its proper divisors (737547).

854805 is a wasteful number, since it uses less digits than its factorization.

854805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185 (or 1178 counting only the distinct ones).

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

The square root of 854805 is about 924.5566505088. The cubic root of 854805 is about 94.9049834843.

The spelling of 854805 in words is "eight hundred fifty-four thousand, eight hundred five".