80840833 has 2 divisors, whose sum is σ = 80840834. Its totient is φ = 80840832.

The previous prime is 80840789. The next prime is 80840861. The reversal of 80840833 is 33804808.

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., 54287424 + 26553409 = 7368^2 + 5153^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80840833 is a prime.

It is not a weakly prime, because it can be changed into another prime (80840873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40420416 + 40420417.

It is an arithmetic number, because the mean of its divisors is an integer number (40420417).

Almost surely, 2^80840833 is an apocalyptic number.

It is an amenable number.

80840833 is a deficient number, since it is larger than the sum of its proper divisors (1).

80840833 is an equidigital number, since it uses as much as digits as its factorization.

80840833 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 34.

The square root of 80840833 is about 8991.1530406283. The cubic root of 80840833 is about 432.3912796546.

The spelling of 80840833 in words is "eighty million, eight hundred forty thousand, eight hundred thirty-three".