284268239 has 2 divisors, whose sum is σ = 284268240. Its totient is φ = 284268238.

The previous prime is 284268223. The next prime is 284268263. The reversal of 284268239 is 932862482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 284268239 - 2⁴ = 284268223 is a prime.

It is a super-2 number, since 2×284268239² = 161616863408322242, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 284268239.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (284268209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142134119 + 142134120.

It is an arithmetic number, because the mean of its divisors is an integer number (142134120).

Almost surely, 2^284268239 is an apocalyptic number.

284268239 is a deficient number, since it is larger than the sum of its proper divisors (1).

284268239 is an equidigital number, since it uses as much as digits as its factorization.

284268239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 331776, while the sum is 44.

The square root of 284268239 is about 16860.2561961555. The cubic root of 284268239 is about 657.5207251054.

The spelling of 284268239 in words is "two hundred eighty-four million, two hundred sixty-eight thousand, two hundred thirty-nine".