223670 has 8 divisors (see below), whose sum is σ = 402624. Its totient is φ = 89464.

The previous prime is 223667. The next prime is 223679. The reversal of 223670 is 76322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 12.

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 pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11174 + ... + 11193.

It is an arithmetic number, because the mean of its divisors is an integer number (50328).

2²²³⁶⁷⁰ is an apocalyptic number.

223670 is a deficient number, since it is larger than the sum of its proper divisors (178954).

223670 is a wasteful number, since it uses less digits than its factorization.

223670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22374.

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

The square root of 223670 is about 472.9376280230. The cubic root of 223670 is about 60.7019411383.

Adding to 223670 its reverse (76322), we get a palindrome (299992).

It can be divided in two parts, 2236 and 70, that multiplied together give a triangular number (156520 = T₅₅₉).

The spelling of 223670 in words is "two hundred twenty-three thousand, six hundred seventy".