223863 has 8 divisors (see below), whose sum is σ = 302976. Its totient is φ = 147000.

The previous prime is 223849. The next prime is 223903. The reversal of 223863 is 368322.

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

It is not a de Polignac number, because 223863 - 2⁵ = 223831 is a prime.

It is a super-2 number, since 2×223863² = 100229285538, which contains 22 as substring.

It is a congruent number.

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, 313 + ... + 738.

It is an arithmetic number, because the mean of its divisors is an integer number (37872).

2²²³⁸⁶³ is an apocalyptic number.

223863 is a deficient number, since it is larger than the sum of its proper divisors (79113).

223863 is a wasteful number, since it uses less digits than its factorization.

223863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1125.

The product of its digits is 1728, while the sum is 24.

The square root of 223863 is about 473.1416278452. The cubic root of 223863 is about 60.7193955825.

The spelling of 223863 in words is "two hundred twenty-three thousand, eight hundred sixty-three".