789856 has 12 divisors (see below), whose sum is σ = 1555092. Its totient is φ = 394912.

The previous prime is 789851. The next prime is 789857. The reversal of 789856 is 658987.

It is a happy number.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (789851) 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 as a sum of consecutive naturals, namely, 12310 + ... + 12373.

It is an arithmetic number, because the mean of its divisors is an integer number (129591).

2⁷⁸⁹⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

789856 is a deficient number, since it is larger than the sum of its proper divisors (765236).

789856 is a wasteful number, since it uses less digits than its factorization.

789856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24693 (or 24685 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 789856 is about 888.7384317109. The cubic root of 789856 is about 92.4377375010.

The spelling of 789856 in words is "seven hundred eighty-nine thousand, eight hundred fifty-six".