223878 has 8 divisors (see below), whose sum is σ = 447768. Its totient is φ = 74624.

The previous prime is 223849. The next prime is 223903. The reversal of 223878 is 878322.

223878 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

223878 is an admirable number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

223878 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 3 ways as a sum of consecutive naturals, for example, 18651 + ... + 18662.

It is an arithmetic number, because the mean of its divisors is an integer number (55971).

2²²³⁸⁷⁸ is an apocalyptic number.

223878 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

223878 is a wasteful number, since it uses less digits than its factorization.

223878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37318.

The product of its digits is 5376, while the sum is 30.

The square root of 223878 is about 473.1574790701. The cubic root of 223878 is about 60.7207517253.

The spelling of 223878 in words is "two hundred twenty-three thousand, eight hundred seventy-eight".