223704 has 48 divisors (see below), whose sum is σ = 655200. Its totient is φ = 68544.

The previous prime is 223697. The next prime is 223711. The reversal of 223704 is 407322.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (223697) and next prime (223711).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 223704.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 817 + ... + 1055.

It is an arithmetic number, because the mean of its divisors is an integer number (13650).

2²²³⁷⁰⁴ is an apocalyptic number.

223704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (327600).

223704 is an abundant number, since it is smaller than the sum of its proper divisors (431496).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223704 is a wasteful number, since it uses less digits than its factorization.

223704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 18.

The square root of 223704 is about 472.9735722004. The cubic root of 223704 is about 60.7050167429.

The spelling of 223704 in words is "two hundred twenty-three thousand, seven hundred four", and thus it is an iban number.