606939217 has 2 divisors, whose sum is σ = 606939218. Its totient is φ = 606939216.

The previous prime is 606939209. The next prime is 606939227. The reversal of 606939217 is 712939606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 605602881 + 1336336 = 24609^2 + 1156^2 .

It is a cyclic number.

It is not a de Polignac number, because 606939217 - 2³ = 606939209 is a prime.

It is not a weakly prime, because it can be changed into another prime (606939227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303469608 + 303469609.

It is an arithmetic number, because the mean of its divisors is an integer number (303469609).

Almost surely, 2^606939217 is an apocalyptic number.

It is an amenable number.

606939217 is a deficient number, since it is larger than the sum of its proper divisors (1).

606939217 is an equidigital number, since it uses as much as digits as its factorization.

606939217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 606939217 is about 24636.1364056948. The cubic root of 606939217 is about 846.6717447736.

The spelling of 606939217 in words is "six hundred six million, nine hundred thirty-nine thousand, two hundred seventeen".