223678 has 16 divisors (see below), whose sum is σ = 413280. Its totient is φ = 88416.

The previous prime is 223667. The next prime is 223679. The reversal of 223678 is 876322.

It is a d-powerful number, because it can be written as 2² + 2⁸ + 6⁶ + 3¹⁰ + 7⁶ + 8² .

It is a plaindrome in base 10 and base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223679) 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, 433 + ... + 796.

It is an arithmetic number, because the mean of its divisors is an integer number (25830).

2²²³⁶⁷⁸ is an apocalyptic number.

223678 is a deficient number, since it is larger than the sum of its proper divisors (189602).

223678 is a wasteful number, since it uses less digits than its factorization.

223678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251.

The product of its digits is 4032, while the sum is 28.

The square root of 223678 is about 472.9460857223. The cubic root of 223678 is about 60.7026648380.

The spelling of 223678 in words is "two hundred twenty-three thousand, six hundred seventy-eight".