80568589 has 2 divisors, whose sum is σ = 80568590. Its totient is φ = 80568588.

The previous prime is 80568577. The next prime is 80568613. The reversal of 80568589 is 98586508.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67930564 + 12638025 = 8242^2 + 3555^2 .

It is a cyclic number.

It is not a de Polignac number, because 80568589 - 2⁹ = 80568077 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (80568289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40284294 + 40284295.

It is an arithmetic number, because the mean of its divisors is an integer number (40284295).

Almost surely, 2^80568589 is an apocalyptic number.

It is an amenable number.

80568589 is a deficient number, since it is larger than the sum of its proper divisors (1).

80568589 is an equidigital number, since it uses as much as digits as its factorization.

80568589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 691200, while the sum is 49.

The square root of 80568589 is about 8976.0007241533. Note that the first 3 decimals coincide. The cubic root of 80568589 is about 431.9053522788.

The spelling of 80568589 in words is "eighty million, five hundred sixty-eight thousand, five hundred eighty-nine".