485420861 has 2 divisors, whose sum is σ = 485420862. Its totient is φ = 485420860.

The previous prime is 485420849. The next prime is 485420867. The reversal of 485420861 is 168024584.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 480968761 + 4452100 = 21931^2 + 2110^2 .

It is a cyclic number.

It is not a de Polignac number, because 485420861 - 2¹⁴ = 485404477 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (485420867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 242710430 + 242710431.

It is an arithmetic number, because the mean of its divisors is an integer number (242710431).

Almost surely, 2^485420861 is an apocalyptic number.

It is an amenable number.

485420861 is a deficient number, since it is larger than the sum of its proper divisors (1).

485420861 is an equidigital number, since it uses as much as digits as its factorization.

485420861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 61440, while the sum is 38.

The square root of 485420861 is about 22032.2686303522. The cubic root of 485420861 is about 785.9099950463.

The spelling of 485420861 in words is "four hundred eighty-five million, four hundred twenty thousand, eight hundred sixty-one".