284738339 has 2 divisors, whose sum is σ = 284738340. Its totient is φ = 284738338.

The previous prime is 284738299. The next prime is 284738341. The reversal of 284738339 is 933837482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 284738339 - 2¹² = 284734243 is a prime.

Together with 284738341, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 284738293 and 284738302.

It is not a weakly prime, because it can be changed into another prime (284738039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142369169 + 142369170.

It is an arithmetic number, because the mean of its divisors is an integer number (142369170).

Almost surely, 2^284738339 is an apocalyptic number.

284738339 is a deficient number, since it is larger than the sum of its proper divisors (1).

284738339 is an equidigital number, since it uses as much as digits as its factorization.

284738339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 284738339 is about 16874.1915065582. The cubic root of 284738339 is about 657.8829771597.

The spelling of 284738339 in words is "two hundred eighty-four million, seven hundred thirty-eight thousand, three hundred thirty-nine".