284113217 has 2 divisors, whose sum is σ = 284113218. Its totient is φ = 284113216.

The previous prime is 284113189. The next prime is 284113241. The reversal of 284113217 is 712311482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 266211856 + 17901361 = 16316^2 + 4231^2 .

It is a cyclic number.

It is not a de Polignac number, because 284113217 - 2¹⁰ = 284112193 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284113217.

It is not a weakly prime, because it can be changed into another prime (284113267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142056608 + 142056609.

It is an arithmetic number, because the mean of its divisors is an integer number (142056609).

Almost surely, 2^284113217 is an apocalyptic number.

It is an amenable number.

284113217 is a deficient number, since it is larger than the sum of its proper divisors (1).

284113217 is an equidigital number, since it uses as much as digits as its factorization.

284113217 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 29.

The square root of 284113217 is about 16855.6583081172. The cubic root of 284113217 is about 657.4011799033.

Adding to 284113217 its reverse (712311482), we get a palindrome (996424699).

The spelling of 284113217 in words is "two hundred eighty-four million, one hundred thirteen thousand, two hundred seventeen".