985084791 has 16 divisors (see below), whose sum is σ = 1339268448. Its totient is φ = 643881600.

The previous prime is 985084769. The next prime is 985084801. The reversal of 985084791 is 197480589.

It is not a de Polignac number, because 985084791 - 2¹⁷ = 984953719 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (985084741) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49521 + ... + 66501.

It is an arithmetic number, because the mean of its divisors is an integer number (83704278).

Almost surely, 2^985084791 is an apocalyptic number.

985084791 is a deficient number, since it is larger than the sum of its proper divisors (354183657).

985084791 is a wasteful number, since it uses less digits than its factorization.

985084791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17362.

The product of its (nonzero) digits is 725760, while the sum is 51.

The square root of 985084791 is about 31386.0604568334. The cubic root of 985084791 is about 995.0033386250.

The spelling of 985084791 in words is "nine hundred eighty-five million, eighty-four thousand, seven hundred ninety-one".