284842427 has 2 divisors, whose sum is σ = 284842428. Its totient is φ = 284842426.

The previous prime is 284842403. The next prime is 284842487. The reversal of 284842427 is 724248482.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 284842427 - 2¹² = 284838331 is a prime.

It is a super-2 number, since 2×284842427² = 162270416438500658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (284842487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142421213 + 142421214.

It is an arithmetic number, because the mean of its divisors is an integer number (142421214).

Almost surely, 2^284842427 is an apocalyptic number.

284842427 is a deficient number, since it is larger than the sum of its proper divisors (1).

284842427 is an equidigital number, since it uses as much as digits as its factorization.

284842427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 229376, while the sum is 41.

The square root of 284842427 is about 16877.2754614008. The cubic root of 284842427 is about 657.9631318977.

The spelling of 284842427 in words is "two hundred eighty-four million, eight hundred forty-two thousand, four hundred twenty-seven".