856358 has 16 divisors (see below), whose sum is σ = 1380240. Its totient is φ = 397056.

The previous prime is 856351. The next prime is 856369. The reversal of 856358 is 853658.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856351) by changing a digit.

856358 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 7 ways as a sum of consecutive naturals, for example, 2885 + ... + 3167.

It is an arithmetic number, because the mean of its divisors is an integer number (86265).

2⁸⁵⁶³⁵⁸ is an apocalyptic number.

856358 is a deficient number, since it is larger than the sum of its proper divisors (523882).

856358 is a wasteful number, since it uses less digits than its factorization.

856358 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391.

The product of its digits is 28800, while the sum is 35.

The square root of 856358 is about 925.3961313946. The cubic root of 856358 is about 94.9624228115.

The spelling of 856358 in words is "eight hundred fifty-six thousand, three hundred fifty-eight".