223887 has 8 divisors (see below), whose sum is σ = 306736. Its totient is φ = 145152.

The previous prime is 223849. The next prime is 223903. The reversal of 223887 is 788322.

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

It is not a de Polignac number, because 223887 - 2⁶ = 223823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 898 + ... + 1119.

It is an arithmetic number, because the mean of its divisors is an integer number (38342).

2²²³⁸⁸⁷ is an apocalyptic number.

223887 is a deficient number, since it is larger than the sum of its proper divisors (82849).

223887 is a wasteful number, since it uses less digits than its factorization.

223887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2057.

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

The square root of 223887 is about 473.1669895502. The cubic root of 223887 is about 60.7215653819.

It can be divided in two parts, 2 and 23887, that multiplied together give a palindrome (47774).

The spelling of 223887 in words is "two hundred twenty-three thousand, eight hundred eighty-seven".