985306847 has 18 divisors (see below), whose sum is σ = 1156369032. Its totient is φ = 837072264.

The previous prime is 985306841. The next prime is 985306849. The reversal of 985306847 is 748603589.

It is not a de Polignac number, because 985306847 - 2¹⁴ = 985290463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 985306795 and 985306804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985306841) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2839328 + ... + 2839674.

It is an arithmetic number, because the mean of its divisors is an integer number (64242724).

Almost surely, 2^985306847 is an apocalyptic number.

985306847 is a deficient number, since it is larger than the sum of its proper divisors (171062185).

985306847 is an equidigital number, since it uses as much as digits as its factorization.

985306847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 875 (or 521 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 50.

The square root of 985306847 is about 31389.5977514845. The cubic root of 985306847 is about 995.0780969483.

The spelling of 985306847 in words is "nine hundred eighty-five million, three hundred six thousand, eight hundred forty-seven".