855834 has 48 divisors (see below), whose sum is σ = 2068416. Its totient is φ = 235200.

The previous prime is 855821. The next prime is 855851. The reversal of 855834 is 438558.

It is a happy number.

855834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 855795 and 855804.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12019 + ... + 12089.

It is an arithmetic number, because the mean of its divisors is an integer number (43092).

2⁸⁵⁵⁸³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 855834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1034208).

855834 is an abundant number, since it is smaller than the sum of its proper divisors (1212582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

855834 is a wasteful number, since it uses less digits than its factorization.

855834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 124 counting only the distinct ones).

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

The square root of 855834 is about 925.1129660750. The cubic root of 855834 is about 94.9430498925.

The spelling of 855834 in words is "eight hundred fifty-five thousand, eight hundred thirty-four".