856896 has 28 divisors (see below), whose sum is σ = 2267712. Its totient is φ = 285568.

The previous prime is 856853. The next prime is 856897. The reversal of 856896 is 698658.

It is a zygodrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (856897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2040 + ... + 2423.

2⁸⁵⁶⁸⁹⁶ is an apocalyptic number.

It is an amenable number.

856896 is an abundant number, since it is smaller than the sum of its proper divisors (1410816).

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

856896 is a wasteful number, since it uses less digits than its factorization.

856896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4478 (or 4468 counting only the distinct ones).

The product of its digits is 103680, while the sum is 42.

The square root of 856896 is about 925.6867720779. The cubic root of 856896 is about 94.9823051069.

The spelling of 856896 in words is "eight hundred fifty-six thousand, eight hundred ninety-six".