606695489 has 2 divisors, whose sum is σ = 606695490. Its totient is φ = 606695488.

The previous prime is 606695477. The next prime is 606695503. The reversal of 606695489 is 984596606.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 604323889 + 2371600 = 24583^2 + 1540^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-606695489 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 606695489.

It is not a weakly prime, because it can be changed into another prime (606695429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303347744 + 303347745.

It is an arithmetic number, because the mean of its divisors is an integer number (303347745).

Almost surely, 2^606695489 is an apocalyptic number.

It is an amenable number.

606695489 is a deficient number, since it is larger than the sum of its proper divisors (1).

606695489 is an equidigital number, since it uses as much as digits as its factorization.

606695489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The square root of 606695489 is about 24631.1893541502. The cubic root of 606695489 is about 846.5583972128.

The spelling of 606695489 in words is "six hundred six million, six hundred ninety-five thousand, four hundred eighty-nine".