223885 has 4 divisors (see below), whose sum is σ = 268668. Its totient is φ = 179104.

The previous prime is 223849. The next prime is 223903. The reversal of 223885 is 588322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 164836 + 59049 = 406^2 + 243^2 .

It is a cyclic number.

It is not a de Polignac number, because 223885 - 2⁷ = 223757 is a prime.

It is a Duffinian number.

223885 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22384 + ... + 22393.

It is an arithmetic number, because the mean of its divisors is an integer number (67167).

2²²³⁸⁸⁵ is an apocalyptic number.

It is an amenable number.

223885 is a deficient number, since it is larger than the sum of its proper divisors (44783).

223885 is an equidigital number, since it uses as much as digits as its factorization.

223885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44782.

The product of its digits is 3840, while the sum is 28.

The square root of 223885 is about 473.1648761267. The cubic root of 223885 is about 60.7213845712.

The spelling of 223885 in words is "two hundred twenty-three thousand, eight hundred eighty-five".