9840385 has 8 divisors (see below), whose sum is σ = 12430080. Its totient is φ = 7457904.

The previous prime is 9840373. The next prime is 9840401. The reversal of 9840385 is 5830489.

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

It is a cyclic number.

It is not a de Polignac number, because 9840385 - 2¹⁵ = 9807617 is a prime.

9840385 is a lucky 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, 51697 + ... + 51886.

It is an arithmetic number, because the mean of its divisors is an integer number (1553760).

Almost surely, 2^9840385 is an apocalyptic number.

9840385 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

9840385 is a deficient number, since it is larger than the sum of its proper divisors (2589695).

9840385 is a wasteful number, since it uses less digits than its factorization.

9840385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103607.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 9840385 is about 3136.9387944300. The cubic root of 9840385 is about 214.2910486503.

The spelling of 9840385 in words is "nine million, eight hundred forty thousand, three hundred eighty-five".