576665489 has 2 divisors, whose sum is σ = 576665490. Its totient is φ = 576665488.

The previous prime is 576665437. The next prime is 576665539. The reversal of 576665489 is 984566675.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 492484864 + 84180625 = 22192^2 + 9175^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-576665489 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (576635489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288332744 + 288332745.

It is an arithmetic number, because the mean of its divisors is an integer number (288332745).

Almost surely, 2^576665489 is an apocalyptic number.

It is an amenable number.

576665489 is a deficient number, since it is larger than the sum of its proper divisors (1).

576665489 is an equidigital number, since it uses as much as digits as its factorization.

576665489 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10886400, while the sum is 56.

The square root of 576665489 is about 24013.8603518884. The cubic root of 576665489 is about 832.3538394367.

The spelling of 576665489 in words is "five hundred seventy-six million, six hundred sixty-five thousand, four hundred eighty-nine".