985844347 has 2 divisors, whose sum is σ = 985844348. Its totient is φ = 985844346.

The previous prime is 985844339. The next prime is 985844449. The reversal of 985844347 is 743448589.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985844347 - 2³ = 985844339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 985844294 and 985844303.

It is not a weakly prime, because it can be changed into another prime (985844947) 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, 492922173 + 492922174.

It is an arithmetic number, because the mean of its divisors is an integer number (492922174).

Almost surely, 2^985844347 is an apocalyptic number.

985844347 is a deficient number, since it is larger than the sum of its proper divisors (1).

985844347 is an equidigital number, since it uses as much as digits as its factorization.

985844347 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The square root of 985844347 is about 31398.1583377115. The cubic root of 985844347 is about 995.2590075113.

The spelling of 985844347 in words is "nine hundred eighty-five million, eight hundred forty-four thousand, three hundred forty-seven".