984996985 has 8 divisors (see below), whose sum is σ = 1350853056. Its totient is φ = 675426480.

The previous prime is 984996979. The next prime is 984997019. The reversal of 984996985 is 589699489.

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

It is not a de Polignac number, because 984996985 - 2²¹ = 982899833 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 984996985.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 14071351 + ... + 14071420.

It is an arithmetic number, because the mean of its divisors is an integer number (168856632).

Almost surely, 2^984996985 is an apocalyptic number.

It is an amenable number.

984996985 is a deficient number, since it is larger than the sum of its proper divisors (365856071).

984996985 is a wasteful number, since it uses less digits than its factorization.

984996985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28142783.

The product of its digits is 50388480, while the sum is 67.

The square root of 984996985 is about 31384.6616199697. The cubic root of 984996985 is about 994.9737743818.

The spelling of 984996985 in words is "nine hundred eighty-four million, nine hundred ninety-six thousand, nine hundred eighty-five".