923856 has 40 divisors (see below), whose sum is σ = 2514720. Its totient is φ = 291456.

The previous prime is 923851. The next prime is 923861. The reversal of 923856 is 658329.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (923851) and next prime (923861).

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 (923851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 406 + ... + 1418.

It is an arithmetic number, because the mean of its divisors is an integer number (62868).

2⁹²³⁸⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 923856, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1257360).

923856 is an abundant number, since it is smaller than the sum of its proper divisors (1590864).

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

923856 is a wasteful number, since it uses less digits than its factorization.

923856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043 (or 1037 counting only the distinct ones).

The product of its digits is 12960, while the sum is 33.

The square root of 923856 is about 961.1742818033. The cubic root of 923856 is about 97.3945737497.

The spelling of 923856 in words is "nine hundred twenty-three thousand, eight hundred fifty-six".