80828243 has 2 divisors, whose sum is σ = 80828244. Its totient is φ = 80828242.

The previous prime is 80828227. The next prime is 80828263. The reversal of 80828243 is 34282808.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 80828243 - 2⁴ = 80828227 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (80828213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 40414121 + 40414122.

It is an arithmetic number, because the mean of its divisors is an integer number (40414122).

Almost surely, 2^80828243 is an apocalyptic number.

80828243 is a deficient number, since it is larger than the sum of its proper divisors (1).

80828243 is an equidigital number, since it uses as much as digits as its factorization.

80828243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24576, while the sum is 35.

The square root of 80828243 is about 8990.4528806952. The cubic root of 80828243 is about 432.3688318864.

The spelling of 80828243 in words is "eighty million, eight hundred twenty-eight thousand, two hundred forty-three".