223885217 has 4 divisors (see below), whose sum is σ = 223930560. Its totient is φ = 223839876.

The previous prime is 223885213. The next prime is 223885231. The reversal of 223885217 is 712588322.

223885217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 223885217 - 2² = 223885213 is a prime.

It is a super-2 number, since 2×223885217² = 100249180782274178, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223885213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14213 + ... + 25490.

It is an arithmetic number, because the mean of its divisors is an integer number (55982640).

Almost surely, 2^223885217 is an apocalyptic number.

It is an amenable number.

223885217 is a deficient number, since it is larger than the sum of its proper divisors (45343).

223885217 is an equidigital number, since it uses as much as digits as its factorization.

223885217 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45342.

The product of its digits is 53760, while the sum is 38.

The square root of 223885217 is about 14962.7944248392. The cubic root of 223885217 is about 607.2140418918.

The spelling of 223885217 in words is "two hundred twenty-three million, eight hundred eighty-five thousand, two hundred seventeen".