845304347 has 2 divisors, whose sum is σ = 845304348. Its totient is φ = 845304346.

The previous prime is 845304323. The next prime is 845304359. The reversal of 845304347 is 743403548.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 845304347 - 2¹⁰ = 845303323 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 845304347.

It is not a weakly prime, because it can be changed into another prime (845304377) 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, 422652173 + 422652174.

It is an arithmetic number, because the mean of its divisors is an integer number (422652174).

Almost surely, 2^845304347 is an apocalyptic number.

845304347 is a deficient number, since it is larger than the sum of its proper divisors (1).

845304347 is an equidigital number, since it uses as much as digits as its factorization.

845304347 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 161280, while the sum is 38.

The square root of 845304347 is about 29074.1181637552. The cubic root of 845304347 is about 945.5206846598.

The spelling of 845304347 in words is "eight hundred forty-five million, three hundred four thousand, three hundred forty-seven".