9875385 has 64 divisors (see below), whose sum is σ = 20079360. Its totient is φ = 4561920.

The previous prime is 9875381. The next prime is 9875389. The reversal of 9875385 is 5835789.

It is an interprime number because it is at equal distance from previous prime (9875381) and next prime (9875389).

It is not a de Polignac number, because 9875385 - 2² = 9875381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 9875385.

It is not an unprimeable number, because it can be changed into a prime (9875381) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29670 + ... + 30000.

It is an arithmetic number, because the mean of its divisors is an integer number (313740).

Almost surely, 2^9875385 is an apocalyptic number.

It is an amenable number.

9875385 is an abundant number, since it is smaller than the sum of its proper divisors (10203975).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9875385 is a wasteful number, since it uses less digits than its factorization.

9875385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375 (or 369 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The square root of 9875385 is about 3142.5125298080. The cubic root of 9875385 is about 214.5448094561.

9875385 divided by its sum of digits (45) gives a triangular number (219453 = T₆₆₂).

It can be divided in two parts, 9 and 875385, that multiplied together give a triangular number (7878465 = T₃₉₆₉).

The spelling of 9875385 in words is "nine million, eight hundred seventy-five thousand, three hundred eighty-five".