605402489 has 2 divisors, whose sum is σ = 605402490. Its totient is φ = 605402488.

The previous prime is 605402477. The next prime is 605402513. The reversal of 605402489 is 984204506.

605402489 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., 601868089 + 3534400 = 24533^2 + 1880^2 .

It is a cyclic number.

It is not a de Polignac number, because 605402489 - 2²⁰ = 604353913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (605402449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 302701244 + 302701245.

It is an arithmetic number, because the mean of its divisors is an integer number (302701245).

Almost surely, 2^605402489 is an apocalyptic number.

It is an amenable number.

605402489 is a deficient number, since it is larger than the sum of its proper divisors (1).

605402489 is an equidigital number, since it uses as much as digits as its factorization.

605402489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 38.

The square root of 605402489 is about 24604.9281445811. The cubic root of 605402489 is about 845.9565694646.

The spelling of 605402489 in words is "six hundred five million, four hundred two thousand, four hundred eighty-nine".