9611985 has 16 divisors (see below), whose sum is σ = 15641280. Its totient is φ = 5039040.

The previous prime is 9611977. The next prime is 9611993. The reversal of 9611985 is 5891169.

It is an interprime number because it is at equal distance from previous prime (9611977) and next prime (9611993).

It is not a de Polignac number, because 9611985 - 2³ = 9611977 is a prime.

9611985 is a lucky number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4546 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (977580).

Almost surely, 2^9611985 is an apocalyptic number.

It is an amenable number.

9611985 is a deficient number, since it is larger than the sum of its proper divisors (6029295).

9611985 is a wasteful number, since it uses less digits than its factorization.

9611985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10928.

The product of its digits is 19440, while the sum is 39.

The square root of 9611985 is about 3100.3201447592. The cubic root of 9611985 is about 212.6201212435.

The spelling of 9611985 in words is "nine million, six hundred eleven thousand, nine hundred eighty-five".