9601985 has 4 divisors (see below), whose sum is σ = 11522388. Its totient is φ = 7681584.

The previous prime is 9601967. The next prime is 9601993. The reversal of 9601985 is 5891069.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5891069 = 179 ⋅32911.

It can be written as a sum of positive squares in 2 ways, for example, as 1399489 + 8202496 = 1183^2 + 2864^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9601985 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 960194 + ... + 960203.

It is an arithmetic number, because the mean of its divisors is an integer number (2880597).

Almost surely, 2^9601985 is an apocalyptic number.

It is an amenable number.

9601985 is a deficient number, since it is larger than the sum of its proper divisors (1920403).

9601985 is a wasteful number, since it uses less digits than its factorization.

9601985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920402.

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 9601985 is about 3098.7069884066. The cubic root of 9601985 is about 212.5463612802.

The spelling of 9601985 in words is "nine million, six hundred one thousand, nine hundred eighty-five".