845930243 has 2 divisors, whose sum is σ = 845930244. Its totient is φ = 845930242.

The previous prime is 845930227. The next prime is 845930257. The reversal of 845930243 is 342039548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845930243 - 2⁴ = 845930227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 845930197 and 845930206.

It is not a weakly prime, because it can be changed into another prime (845930213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422965121 + 422965122.

It is an arithmetic number, because the mean of its divisors is an integer number (422965122).

Almost surely, 2^845930243 is an apocalyptic number.

845930243 is a deficient number, since it is larger than the sum of its proper divisors (1).

845930243 is an equidigital number, since it uses as much as digits as its factorization.

845930243 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 103680, while the sum is 38.

The square root of 845930243 is about 29084.8799722467. The cubic root of 845930243 is about 945.7539937684.

The spelling of 845930243 in words is "eight hundred forty-five million, nine hundred thirty thousand, two hundred forty-three".