223868573 has 2 divisors, whose sum is σ = 223868574. Its totient is φ = 223868572.

The previous prime is 223868539. The next prime is 223868587. The reversal of 223868573 is 375868322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 138250564 + 85618009 = 11758^2 + 9253^2 .

It is a cyclic number.

It is not a de Polignac number, because 223868573 - 2⁶ = 223868509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223868173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111934286 + 111934287.

It is an arithmetic number, because the mean of its divisors is an integer number (111934287).

Almost surely, 2^223868573 is an apocalyptic number.

It is an amenable number.

223868573 is a deficient number, since it is larger than the sum of its proper divisors (1).

223868573 is an equidigital number, since it uses as much as digits as its factorization.

223868573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 483840, while the sum is 44.

The square root of 223868573 is about 14962.2382349701. The cubic root of 223868573 is about 607.1989944178.

The spelling of 223868573 in words is "two hundred twenty-three million, eight hundred sixty-eight thousand, five hundred seventy-three".