485603309 has 2 divisors, whose sum is σ = 485603310. Its totient is φ = 485603308.

The previous prime is 485603297. The next prime is 485603329. The reversal of 485603309 is 903306584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 457746025 + 27857284 = 21395^2 + 5278^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485603309 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485603329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242801654 + 242801655.

It is an arithmetic number, because the mean of its divisors is an integer number (242801655).

Almost surely, 2^485603309 is an apocalyptic number.

It is an amenable number.

485603309 is a deficient number, since it is larger than the sum of its proper divisors (1).

485603309 is an equidigital number, since it uses as much as digits as its factorization.

485603309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 38.

The square root of 485603309 is about 22036.4087137628. The cubic root of 485603309 is about 786.0084455234.

The spelling of 485603309 in words is "four hundred eighty-five million, six hundred three thousand, three hundred nine".