83430089 has 2 divisors, whose sum is σ = 83430090. Its totient is φ = 83430088.

The previous prime is 83430073. The next prime is 83430097. The reversal of 83430089 is 98003438.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 765625 = 9092^2 + 875^2 .

It is a cyclic number.

It is not a de Polignac number, because 83430089 - 2⁴ = 83430073 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (83430049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41715044 + 41715045.

It is an arithmetic number, because the mean of its divisors is an integer number (41715045).

Almost surely, 2^83430089 is an apocalyptic number.

It is an amenable number.

83430089 is a deficient number, since it is larger than the sum of its proper divisors (1).

83430089 is an equidigital number, since it uses as much as digits as its factorization.

83430089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 83430089 is about 9134.0072804876. The cubic root of 83430089 is about 436.9592147055.

The spelling of 83430089 in words is "eighty-three million, four hundred thirty thousand, eighty-nine".