853845 has 8 divisors (see below), whose sum is σ = 1366176. Its totient is φ = 455376.

The previous prime is 853843. The next prime is 853873. The reversal of 853845 is 548358.

It is a happy number.

853845 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 853845 - 2¹ = 853843 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853843) 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, 28447 + ... + 28476.

It is an arithmetic number, because the mean of its divisors is an integer number (170772).

2⁸⁵³⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

853845 is a deficient number, since it is larger than the sum of its proper divisors (512331).

853845 is a wasteful number, since it uses less digits than its factorization.

853845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56931.

The product of its digits is 19200, while the sum is 33.

The square root of 853845 is about 924.0373369080. The cubic root of 853845 is about 94.8694420792.

The spelling of 853845 in words is "eight hundred fifty-three thousand, eight hundred forty-five".