223387 has 4 divisors (see below), whose sum is σ = 231120. Its totient is φ = 215656.

The previous prime is 223381. The next prime is 223403. The reversal of 223387 is 783322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 783322 = 2 ⋅391661.

It is a cyclic number.

It is not a de Polignac number, because 223387 - 2⁷ = 223259 is a prime.

It is a d-powerful number, because it can be written as 2⁷ + 2¹⁷ + 3³ + 3¹⁰ + 8⁵ + 7³ .

It is a Duffinian number.

It is a plaindrome in base 16.

It is a nialpdrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (223381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3823 + ... + 3880.

It is an arithmetic number, because the mean of its divisors is an integer number (57780).

2²²³³⁸⁷ is an apocalyptic number.

223387 is a deficient number, since it is larger than the sum of its proper divisors (7733).

223387 is an equidigital number, since it uses as much as digits as its factorization.

223387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7732.

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

The square root of 223387 is about 472.6383395367. The cubic root of 223387 is about 60.6763291510.

The spelling of 223387 in words is "two hundred twenty-three thousand, three hundred eighty-seven".