223689 has 8 divisors (see below), whose sum is σ = 300672. Its totient is φ = 147920.

The previous prime is 223681. The next prime is 223697. The reversal of 223689 is 986322.

It is an interprime number because it is at equal distance from previous prime (223681) and next prime (223697).

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 223689 - 2³ = 223681 is a prime.

It is a plaindrome in base 10.

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (223681) 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, 304 + ... + 734.

It is an arithmetic number, because the mean of its divisors is an integer number (37584).

2²²³⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

223689 is a deficient number, since it is larger than the sum of its proper divisors (76983).

223689 is a wasteful number, since it uses less digits than its factorization.

223689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607.

The product of its digits is 5184, while the sum is 30.

The square root of 223689 is about 472.9577148118. The cubic root of 223689 is about 60.7036598969.

The spelling of 223689 in words is "two hundred twenty-three thousand, six hundred eighty-nine".