284240641 has 2 divisors, whose sum is σ = 284240642. Its totient is φ = 284240640.

The previous prime is 284240639. The next prime is 284240651. The reversal of 284240641 is 146042482.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278189041 + 6051600 = 16679^2 + 2460^2 .

It is a cyclic number.

It is not a de Polignac number, because 284240641 - 2¹ = 284240639 is a prime.

Together with 284240639, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (284240651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142120320 + 142120321.

It is an arithmetic number, because the mean of its divisors is an integer number (142120321).

Almost surely, 2^284240641 is an apocalyptic number.

It is an amenable number.

284240641 is a deficient number, since it is larger than the sum of its proper divisors (1).

284240641 is an equidigital number, since it uses as much as digits as its factorization.

284240641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 284240641 is about 16859.4377427007. The cubic root of 284240641 is about 657.4994460905.

The spelling of 284240641 in words is "two hundred eighty-four million, two hundred forty thousand, six hundred forty-one".