223822813 has 16 divisors (see below), whose sum is σ = 236819520. Its totient is φ = 211305600.

The previous prime is 223822771. The next prime is 223822843. The reversal of 223822813 is 318228322.

It is a cyclic number.

It is not a de Polignac number, because 223822813 - 2⁹ = 223822301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223822843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161383 + ... + 162763.

It is an arithmetic number, because the mean of its divisors is an integer number (14801220).

Almost surely, 2^223822813 is an apocalyptic number.

It is an amenable number.

223822813 is a deficient number, since it is larger than the sum of its proper divisors (12996707).

223822813 is a wasteful number, since it uses less digits than its factorization.

223822813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548.

The product of its digits is 9216, while the sum is 31.

The square root of 223822813 is about 14960.7089738421. The cubic root of 223822813 is about 607.1576199646.

The spelling of 223822813 in words is "two hundred twenty-three million, eight hundred twenty-two thousand, eight hundred thirteen".