223345685 has 8 divisors (see below), whose sum is σ = 268414776. Its totient is φ = 178409920.

The previous prime is 223345679. The next prime is 223345693. The reversal of 223345685 is 586543322.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 123165604 + 100180081 = 11098^2 + 10009^2 .

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

It is not a de Polignac number, because 223345685 - 2⁸ = 223345429 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 29606 + ... + 36375.

It is an arithmetic number, because the mean of its divisors is an integer number (33551847).

Almost surely, 2^223345685 is an apocalyptic number.

It is an amenable number.

223345685 is a deficient number, since it is larger than the sum of its proper divisors (45069091).

223345685 is an equidigital number, since it uses as much as digits as its factorization.

223345685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66663.

The product of its digits is 172800, while the sum is 38.

The square root of 223345685 is about 14944.7544309032. The cubic root of 223345685 is about 606.7258826324.

The spelling of 223345685 in words is "two hundred twenty-three million, three hundred forty-five thousand, six hundred eighty-five".