486845221 has 2 divisors, whose sum is σ = 486845222. Its totient is φ = 486845220.

The previous prime is 486845197. The next prime is 486845257. The reversal of 486845221 is 122548684.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 452200225 + 34644996 = 21265^2 + 5886^2 .

It is a cyclic number.

It is not a de Polignac number, because 486845221 - 2¹⁵ = 486812453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486842221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243422610 + 243422611.

It is an arithmetic number, because the mean of its divisors is an integer number (243422611).

Almost surely, 2^486845221 is an apocalyptic number.

It is an amenable number.

486845221 is a deficient number, since it is larger than the sum of its proper divisors (1).

486845221 is an equidigital number, since it uses as much as digits as its factorization.

486845221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122880, while the sum is 40.

The square root of 486845221 is about 22064.5693590426. The cubic root of 486845221 is about 786.6779373525.

The spelling of 486845221 in words is "four hundred eighty-six million, eight hundred forty-five thousand, two hundred twenty-one".