485749813 has 2 divisors, whose sum is σ = 485749814. Its totient is φ = 485749812.

The previous prime is 485749793. The next prime is 485749843. The reversal of 485749813 is 318947584.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 363359844 + 122389969 = 19062^2 + 11063^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-485749813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485749843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242874906 + 242874907.

It is an arithmetic number, because the mean of its divisors is an integer number (242874907).

Almost surely, 2^485749813 is an apocalyptic number.

It is an amenable number.

485749813 is a deficient number, since it is larger than the sum of its proper divisors (1).

485749813 is an equidigital number, since it uses as much as digits as its factorization.

485749813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 967680, while the sum is 49.

The square root of 485749813 is about 22039.7325981964. The cubic root of 485749813 is about 786.0874824662.

The spelling of 485749813 in words is "four hundred eighty-five million, seven hundred forty-nine thousand, eight hundred thirteen".