485691709 has 2 divisors, whose sum is σ = 485691710. Its totient is φ = 485691708.

The previous prime is 485691691. The next prime is 485691721. The reversal of 485691709 is 907196584.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 429111225 + 56580484 = 20715^2 + 7522^2 .

It is a cyclic number.

It is not a de Polignac number, because 485691709 - 2⁵ = 485691677 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485691769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242845854 + 242845855.

It is an arithmetic number, because the mean of its divisors is an integer number (242845855).

Almost surely, 2^485691709 is an apocalyptic number.

It is an amenable number.

485691709 is a deficient number, since it is larger than the sum of its proper divisors (1).

485691709 is an equidigital number, since it uses as much as digits as its factorization.

485691709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 485691709 is about 22038.4143939622. The cubic root of 485691709 is about 786.0561380394.

The spelling of 485691709 in words is "four hundred eighty-five million, six hundred ninety-one thousand, seven hundred nine".