284511223 has 4 divisors (see below), whose sum is σ = 284986800. Its totient is φ = 284035648.

The previous prime is 284511191. The next prime is 284511233. The reversal of 284511223 is 322115482.

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

It is a cyclic number.

It is not a de Polignac number, because 284511223 - 2⁵ = 284511191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 284511191 and 284511200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (284511233) 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, 236890 + ... + 238087.

It is an arithmetic number, because the mean of its divisors is an integer number (71246700).

Almost surely, 2^284511223 is an apocalyptic number.

284511223 is a deficient number, since it is larger than the sum of its proper divisors (475577).

284511223 is an equidigital number, since it uses as much as digits as its factorization.

284511223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 475576.

The product of its digits is 3840, while the sum is 28.

The square root of 284511223 is about 16867.4604786850. The cubic root of 284511223 is about 657.7080147778.

The spelling of 284511223 in words is "two hundred eighty-four million, five hundred eleven thousand, two hundred twenty-three".