286340489 has 2 divisors, whose sum is σ = 286340490. Its totient is φ = 286340488.

The previous prime is 286340441. The next prime is 286340533. The reversal of 286340489 is 984043682.

It is an a-pointer prime, because the next prime (286340533) can be obtained adding 286340489 to its sum of digits (44).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 280897600 + 5442889 = 16760^2 + 2333^2 .

It is a cyclic number.

It is not a de Polignac number, because 286340489 - 2⁸ = 286340233 is a prime.

It is a Chen prime.

It is a plaindrome in base 16.

It is not a weakly prime, because it can be changed into another prime (286340419) 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, 143170244 + 143170245.

It is an arithmetic number, because the mean of its divisors is an integer number (143170245).

Almost surely, 2^286340489 is an apocalyptic number.

It is an amenable number.

286340489 is a deficient number, since it is larger than the sum of its proper divisors (1).

286340489 is an equidigital number, since it uses as much as digits as its factorization.

286340489 is an odious number, because the sum of its binary digits is odd.

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

The square root of 286340489 is about 16921.5982992151. The cubic root of 286340489 is about 659.1145832935.

The spelling of 286340489 in words is "two hundred eighty-six million, three hundred forty thousand, four hundred eighty-nine".