485689 has 2 divisors, whose sum is σ = 485690. Its totient is φ = 485688.

The previous prime is 485671. The next prime is 485701. The reversal of 485689 is 986584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 166464 = 565^2 + 408^2 .

It is a cyclic number.

It is not a de Polignac number, because 485689 - 2⁵ = 485657 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (485609) 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, 242844 + 242845.

It is an arithmetic number, because the mean of its divisors is an integer number (242845).

2⁴⁸⁵⁶⁸⁹ is an apocalyptic number.

It is an amenable number.

485689 is a deficient number, since it is larger than the sum of its proper divisors (1).

485689 is an equidigital number, since it uses as much as digits as its factorization.

485689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 69120, while the sum is 40.

The square root of 485689 is about 696.9139114697. The cubic root of 485689 is about 78.6054676598.

The spelling of 485689 in words is "four hundred eighty-five thousand, six hundred eighty-nine".