223958 has 16 divisors (see below), whose sum is σ = 406944. Its totient is φ = 90240.

The previous prime is 223939. The next prime is 223963. The reversal of 223958 is 859322.

223958 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 12.

It is a self number, because there is not a number n which added to its sum of digits gives 223958.

It is a congruent number.

It is an unprimeable number.

223958 is an untouchable number, because it is not equal to the sum of proper divisors of any 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 7 ways as a sum of consecutive naturals, for example, 233 + ... + 708.

It is an arithmetic number, because the mean of its divisors is an integer number (25434).

2²²³⁹⁵⁸ is an apocalyptic number.

223958 is a deficient number, since it is larger than the sum of its proper divisors (182986).

223958 is a wasteful number, since it uses less digits than its factorization.

223958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 967.

The product of its digits is 4320, while the sum is 29.

The square root of 223958 is about 473.2420099695. The cubic root of 223958 is about 60.7279834640.

The spelling of 223958 in words is "two hundred twenty-three thousand, nine hundred fifty-eight".