223685365 has 4 divisors (see below), whose sum is σ = 268422444. Its totient is φ = 178948288.

The previous prime is 223685321. The next prime is 223685377. The reversal of 223685365 is 563586322.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 112656996 + 111028369 = 10614^2 + 10537^2 .

It is a cyclic number.

It is not a de Polignac number, because 223685365 - 2⁷ = 223685237 is a prime.

It is a super-3 number, since 3×223685365³ (a number of 26 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22368532 + ... + 22368541.

It is an arithmetic number, because the mean of its divisors is an integer number (67105611).

Almost surely, 2^223685365 is an apocalyptic number.

It is an amenable number.

223685365 is a deficient number, since it is larger than the sum of its proper divisors (44737079).

223685365 is an equidigital number, since it uses as much as digits as its factorization.

223685365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44737078.

The product of its digits is 259200, while the sum is 40.

The square root of 223685365 is about 14956.1146358270. The cubic root of 223685365 is about 607.0333107878.

The spelling of 223685365 in words is "two hundred twenty-three million, six hundred eighty-five thousand, three hundred sixty-five".