420585211 has 2 divisors, whose sum is σ = 420585212. Its totient is φ = 420585210.

The previous prime is 420585163. The next prime is 420585233. The reversal of 420585211 is 112585024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 420585211 - 2⁹ = 420584699 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 420585211.

It is not a weakly prime, because it can be changed into another prime (420585251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210292605 + 210292606.

It is an arithmetic number, because the mean of its divisors is an integer number (210292606).

Almost surely, 2^420585211 is an apocalyptic number.

420585211 is a deficient number, since it is larger than the sum of its proper divisors (1).

420585211 is an equidigital number, since it uses as much as digits as its factorization.

420585211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3200, while the sum is 28.

The square root of 420585211 is about 20508.1742483333. The cubic root of 420585211 is about 749.2349003547.

The spelling of 420585211 in words is "four hundred twenty million, five hundred eighty-five thousand, two hundred eleven".