487068209 has 2 divisors, whose sum is σ = 487068210. Its totient is φ = 487068208.

The previous prime is 487068163. The next prime is 487068229. The reversal of 487068209 is 902860784.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 445336609 + 41731600 = 21103^2 + 6460^2 .

It is a cyclic number.

It is not a de Polignac number, because 487068209 - 2⁸ = 487067953 is a prime.

It is equal to p_25709759 and since 487068209 and 25709759 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 487068209.

It is not a weakly prime, because it can be changed into another prime (487068229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243534104 + 243534105.

It is an arithmetic number, because the mean of its divisors is an integer number (243534105).

Almost surely, 2^487068209 is an apocalyptic number.

It is an amenable number.

487068209 is a deficient number, since it is larger than the sum of its proper divisors (1).

487068209 is an equidigital number, since it uses as much as digits as its factorization.

487068209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 193536, while the sum is 44.

The square root of 487068209 is about 22069.6218590170. The cubic root of 487068209 is about 786.7980254605.

The spelling of 487068209 in words is "four hundred eighty-seven million, sixty-eight thousand, two hundred nine".