485764813 has 2 divisors, whose sum is σ = 485764814. Its totient is φ = 485764812.

The previous prime is 485764781. The next prime is 485764831. The reversal of 485764813 is 318467584.

It is a happy number.

Together with next prime (485764831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305480484 + 180284329 = 17478^2 + 13427^2 .

It is a cyclic number.

It is not a de Polignac number, because 485764813 - 2⁵ = 485764781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485764313) 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, 242882406 + 242882407.

It is an arithmetic number, because the mean of its divisors is an integer number (242882407).

Almost surely, 2^485764813 is an apocalyptic number.

It is an amenable number.

485764813 is a deficient number, since it is larger than the sum of its proper divisors (1).

485764813 is an equidigital number, since it uses as much as digits as its factorization.

485764813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 645120, while the sum is 46.

The square root of 485764813 is about 22040.0728900791. The cubic root of 485764813 is about 786.0955738681.

The spelling of 485764813 in words is "four hundred eighty-five million, seven hundred sixty-four thousand, eight hundred thirteen".