984615985 has 8 divisors (see below), whose sum is σ = 1181708136. Its totient is φ = 787580160.

The previous prime is 984615971. The next prime is 984615997. The reversal of 984615985 is 589516489.

It can be written as a sum of positive squares in 4 ways, for example, as 364008241 + 620607744 = 19079^2 + 24912^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 984615985 - 2¹¹ = 984613937 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57097 + ... + 72313.

It is an arithmetic number, because the mean of its divisors is an integer number (147713517).

Almost surely, 2^984615985 is an apocalyptic number.

It is an amenable number.

984615985 is a deficient number, since it is larger than the sum of its proper divisors (197092151).

984615985 is a wasteful number, since it uses less digits than its factorization.

984615985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28163.

The product of its digits is 3110400, while the sum is 55.

The square root of 984615985 is about 31378.5911888982. The cubic root of 984615985 is about 994.8454714863.

The spelling of 984615985 in words is "nine hundred eighty-four million, six hundred fifteen thousand, nine hundred eighty-five".