486500221 has 2 divisors, whose sum is σ = 486500222. Its totient is φ = 486500220.

The previous prime is 486500207. The next prime is 486500227. The reversal of 486500221 is 122005684.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 463325625 + 23174596 = 21525^2 + 4814^2 .

It is a cyclic number.

It is not a de Polignac number, because 486500221 - 2⁷ = 486500093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 486500221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (486500227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243250110 + 243250111.

It is an arithmetic number, because the mean of its divisors is an integer number (243250111).

Almost surely, 2^486500221 is an apocalyptic number.

It is an amenable number.

486500221 is a deficient number, since it is larger than the sum of its proper divisors (1).

486500221 is an equidigital number, since it uses as much as digits as its factorization.

486500221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 486500221 is about 22056.7500099176. The cubic root of 486500221 is about 786.4920685441.

The spelling of 486500221 in words is "four hundred eighty-six million, five hundred thousand, two hundred twenty-one".