847000085389 has 2 divisors, whose sum is σ = 847000085390. Its totient is φ = 847000085388.

The previous prime is 847000085339. The next prime is 847000085543. The reversal of 847000085389 is 983580000748.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 836694384100 + 10305701289 = 914710^2 + 101517^2 .

It is a cyclic number.

It is not a de Polignac number, because 847000085389 - 2²⁵ = 846966530957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (847000085339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 423500042694 + 423500042695.

It is an arithmetic number, because the mean of its divisors is an integer number (423500042695).

Almost surely, 2^847000085389 is an apocalyptic number.

It is an amenable number.

847000085389 is a deficient number, since it is larger than the sum of its proper divisors (1).

847000085389 is an equidigital number, since it uses as much as digits as its factorization.

847000085389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1935360, while the sum is 52.

The spelling of 847000085389 in words is "eight hundred forty-seven billion, eighty-five thousand, three hundred eighty-nine".