80326289 has 2 divisors, whose sum is σ = 80326290. Its totient is φ = 80326288.

The previous prime is 80326273. The next prime is 80326303. The reversal of 80326289 is 98262308.

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., 44422225 + 35904064 = 6665^2 + 5992^2 .

It is a cyclic number.

It is not a de Polignac number, because 80326289 - 2⁴ = 80326273 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 (80326219) 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, 40163144 + 40163145.

It is an arithmetic number, because the mean of its divisors is an integer number (40163145).

Almost surely, 2^80326289 is an apocalyptic number.

It is an amenable number.

80326289 is a deficient number, since it is larger than the sum of its proper divisors (1).

80326289 is an equidigital number, since it uses as much as digits as its factorization.

80326289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 80326289 is about 8962.4934588540. The cubic root of 80326289 is about 431.4719503301.

The spelling of 80326289 in words is "eighty million, three hundred twenty-six thousand, two hundred eighty-nine".