853843 has 2 divisors, whose sum is σ = 853844. Its totient is φ = 853842.

The previous prime is 853837. The next prime is 853873. The reversal of 853843 is 348358.

853843 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-853843 is a prime.

853843 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (853813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 426921 + 426922.

It is an arithmetic number, because the mean of its divisors is an integer number (426922).

2⁸⁵³⁸⁴³ is an apocalyptic number.

853843 is a deficient number, since it is larger than the sum of its proper divisors (1).

853843 is an equidigital number, since it uses as much as digits as its factorization.

853843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 31.

The square root of 853843 is about 924.0362547000. The cubic root of 853843 is about 94.8693680068.

The spelling of 853843 in words is "eight hundred fifty-three thousand, eight hundred forty-three".