485641657 has 2 divisors, whose sum is σ = 485641658. Its totient is φ = 485641656.

The previous prime is 485641591. The next prime is 485641693. The reversal of 485641657 is 756146584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 485276841 + 364816 = 22029^2 + 604^2 .

It is a cyclic number.

It is not a de Polignac number, because 485641657 - 2⁷ = 485641529 is a prime.

It is not a weakly prime, because it can be changed into another prime (485641697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242820828 + 242820829.

It is an arithmetic number, because the mean of its divisors is an integer number (242820829).

Almost surely, 2^485641657 is an apocalyptic number.

It is an amenable number.

485641657 is a deficient number, since it is larger than the sum of its proper divisors (1).

485641657 is an equidigital number, since it uses as much as digits as its factorization.

485641657 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 806400, while the sum is 46.

The square root of 485641657 is about 22037.2788020663. The cubic root of 485641657 is about 786.0291352908.

The spelling of 485641657 in words is "four hundred eighty-five million, six hundred forty-one thousand, six hundred fifty-seven".