605772217 has 2 divisors, whose sum is σ = 605772218. Its totient is φ = 605772216.

The previous prime is 605772199. The next prime is 605772247. The reversal of 605772217 is 712277506.

605772217 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598242681 + 7529536 = 24459^2 + 2744^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-605772217 is a prime.

It is not a weakly prime, because it can be changed into another prime (605772247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302886108 + 302886109.

It is an arithmetic number, because the mean of its divisors is an integer number (302886109).

Almost surely, 2^605772217 is an apocalyptic number.

It is an amenable number.

605772217 is a deficient number, since it is larger than the sum of its proper divisors (1).

605772217 is an equidigital number, since it uses as much as digits as its factorization.

605772217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41160, while the sum is 37.

The square root of 605772217 is about 24612.4402894146. The cubic root of 605772217 is about 846.1287470302.

The spelling of 605772217 in words is "six hundred five million, seven hundred seventy-two thousand, two hundred seventeen".