854905 has 8 divisors (see below), whose sum is σ = 1080000. Its totient is φ = 647856.

The previous prime is 854899. The next prime is 854921. The reversal of 854905 is 509458.

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 854905 - 2³ = 854897 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4405 + ... + 4594.

It is an arithmetic number, because the mean of its divisors is an integer number (135000).

2⁸⁵⁴⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

854905 is a deficient number, since it is larger than the sum of its proper divisors (225095).

854905 is a wasteful number, since it uses less digits than its factorization.

854905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9023.

The product of its (nonzero) digits is 7200, while the sum is 31.

The square root of 854905 is about 924.6107289016. The cubic root of 854905 is about 94.9086841834.

The spelling of 854905 in words is "eight hundred fifty-four thousand, nine hundred five".