867834 has 40 divisors (see below), whose sum is σ = 2125728. Its totient is φ = 262440.

The previous prime is 867829. The next prime is 867857. The reversal of 867834 is 438768.

Its product of digits (32256) is a multiple of the sum of its prime factors (512).

It is an unprimeable number.

867834 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1539 + ... + 2025.

2⁸⁶⁷⁸³⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 867834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1062864).

867834 is an abundant number, since it is smaller than the sum of its proper divisors (1257894).

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

867834 is a wasteful number, since it uses less digits than its factorization.

867834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 503 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The square root of 867834 is about 931.5760838493. The cubic root of 867834 is about 95.3847370859.

The spelling of 867834 in words is "eight hundred sixty-seven thousand, eight hundred thirty-four".