223706 has 24 divisors (see below), whose sum is σ = 418080. Its totient is φ = 87696.

The previous prime is 223697. The next prime is 223711. The reversal of 223706 is 607322.

223706 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 223706.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 7700 + ... + 7728.

It is an arithmetic number, because the mean of its divisors is an integer number (17420).

2²²³⁷⁰⁶ is an apocalyptic number.

223706 is a deficient number, since it is larger than the sum of its proper divisors (194374).

223706 is a wasteful number, since it uses less digits than its factorization.

223706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 20.

The square root of 223706 is about 472.9756864787. The cubic root of 223706 is about 60.7051976511.

It can be divided in two parts, 223 and 706, that added together give a palindrome (929).

The spelling of 223706 in words is "two hundred twenty-three thousand, seven hundred six".