223946 has 4 divisors (see below), whose sum is σ = 335922. Its totient is φ = 111972.

The previous prime is 223939. The next prime is 223963. The reversal of 223946 is 649322.

223946 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649322 = 2 ⋅324661.

It can be written as a sum of positive squares in only one way, i.e., 198025 + 25921 = 445^2 + 161^2 .

It is a d-powerful number, because it can be written as 2 + 2⁷ + 9 + 3¹¹ + 4 + 6⁶ .

It is a Curzon number.

It is a nialpdrome in base 6 and base 12.

It is an unprimeable number.

223946 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55985 + ... + 55988.

2²²³⁹⁴⁶ is an apocalyptic number.

223946 is a deficient number, since it is larger than the sum of its proper divisors (111976).

223946 is a wasteful number, since it uses less digits than its factorization.

223946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111975.

The product of its digits is 2592, while the sum is 26.

The square root of 223946 is about 473.2293312972. The cubic root of 223946 is about 60.7268988130.

The spelling of 223946 in words is "two hundred twenty-three thousand, nine hundred forty-six".