853838 has 4 divisors (see below), whose sum is σ = 1280760. Its totient is φ = 426918.

The previous prime is 853837. The next prime is 853843. The reversal of 853838 is 838358.

853838 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 853798 and 853807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (853837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213458 + ... + 213461.

It is an arithmetic number, because the mean of its divisors is an integer number (320190).

2⁸⁵³⁸³⁸ is an apocalyptic number.

853838 is a deficient number, since it is larger than the sum of its proper divisors (426922).

853838 is a wasteful number, since it uses less digits than its factorization.

853838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 426921.

The product of its digits is 23040, while the sum is 35.

The square root of 853838 is about 924.0335491745. The cubic root of 853838 is about 94.8691828253.

The spelling of 853838 in words is "eight hundred fifty-three thousand, eight hundred thirty-eight".