487466809 has 2 divisors, whose sum is σ = 487466810. Its totient is φ = 487466808.

The previous prime is 487466801. The next prime is 487466827. The reversal of 487466809 is 908664784.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 479610000 + 7856809 = 21900^2 + 2803^2 .

It is a cyclic number.

It is not a de Polignac number, because 487466809 - 2³ = 487466801 is a prime.

It is not a weakly prime, because it can be changed into another prime (487466801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243733404 + 243733405.

It is an arithmetic number, because the mean of its divisors is an integer number (243733405).

Almost surely, 2^487466809 is an apocalyptic number.

It is an amenable number.

487466809 is a deficient number, since it is larger than the sum of its proper divisors (1).

487466809 is an equidigital number, since it uses as much as digits as its factorization.

487466809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 52.

The square root of 487466809 is about 22078.6505248849. The cubic root of 487466809 is about 787.0125964895.

It can be divided in two parts, 48746 and 6809, that added together give a palindrome (55555).

The spelling of 487466809 in words is "four hundred eighty-seven million, four hundred sixty-six thousand, eight hundred nine".