223873 has 8 divisors (see below), whose sum is σ = 255528. Its totient is φ = 194304.

The previous prime is 223849. The next prime is 223903. The reversal of 223873 is 378322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 144 + 223729 = 12^2 + 473^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 223873 - 2⁵ = 223841 is a prime.

It is not an unprimeable number, because it can be changed into a prime (223823) 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, 286 + ... + 727.

It is an arithmetic number, because the mean of its divisors is an integer number (31941).

2²²³⁸⁷³ is an apocalyptic number.

It is an amenable number.

223873 is a deficient number, since it is larger than the sum of its proper divisors (31655).

223873 is a wasteful number, since it uses less digits than its factorization.

223873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1043.

The product of its digits is 2016, while the sum is 25.

The square root of 223873 is about 473.1521953875. The cubic root of 223873 is about 60.7202996844.

Subtracting 223873 from its reverse (378322), we obtain a square (154449 = 393²).

It can be divided in two parts, 22387 and 3, that multiplied together give a triangular number (67161 = T₃₆₆).

The spelling of 223873 in words is "two hundred twenty-three thousand, eight hundred seventy-three".