484839781 has 2 divisors, whose sum is σ = 484839782. Its totient is φ = 484839780.

The previous prime is 484839743. The next prime is 484839811. The reversal of 484839781 is 187938484.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 298080225 + 186759556 = 17265^2 + 13666^2 .

It is a cyclic number.

It is not a de Polignac number, because 484839781 - 2⁷ = 484839653 is a prime.

It is a super-2 number, since 2×484839781² = 470139226480255922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (484839731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242419890 + 242419891.

It is an arithmetic number, because the mean of its divisors is an integer number (242419891).

Almost surely, 2^484839781 is an apocalyptic number.

It is an amenable number.

484839781 is a deficient number, since it is larger than the sum of its proper divisors (1).

484839781 is an equidigital number, since it uses as much as digits as its factorization.

484839781 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1548288, while the sum is 52.

The square root of 484839781 is about 22019.0776600656. The cubic root of 484839781 is about 785.5962748901.

The spelling of 484839781 in words is "four hundred eighty-four million, eight hundred thirty-nine thousand, seven hundred eighty-one".