486091009 has 2 divisors, whose sum is σ = 486091010. Its totient is φ = 486091008.

The previous prime is 486091007. The next prime is 486091019. The reversal of 486091009 is 900190684.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350438400 + 135652609 = 18720^2 + 11647^2 .

It is a cyclic number.

It is not a de Polignac number, because 486091009 - 2¹ = 486091007 is a prime.

Together with 486091007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (486091007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243045504 + 243045505.

It is an arithmetic number, because the mean of its divisors is an integer number (243045505).

Almost surely, 2^486091009 is an apocalyptic number.

It is an amenable number.

486091009 is a deficient number, since it is larger than the sum of its proper divisors (1).

486091009 is an equidigital number, since it uses as much as digits as its factorization.

486091009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 37.

The square root of 486091009 is about 22047.4717144620. The cubic root of 486091009 is about 786.2714915481.

The spelling of 486091009 in words is "four hundred eighty-six million, ninety-one thousand, nine".