9885609 has 6 divisors (see below), whose sum is σ = 14279226. Its totient is φ = 6590400.

The previous prime is 9885593. The next prime is 9885611. The reversal of 9885609 is 9065889.

9885609 is a `hidden beast` number, since 9 + 88 + 560 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 6656400 + 3229209 = 2580^2 + 1797^2 .

It is not a de Polignac number, because 9885609 - 2⁴ = 9885593 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9885209) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 549192 + ... + 549209.

It is an arithmetic number, because the mean of its divisors is an integer number (2379871).

Almost surely, 2^9885609 is an apocalyptic number.

It is an amenable number.

9885609 is a deficient number, since it is larger than the sum of its proper divisors (4393617).

9885609 is a wasteful number, since it uses less digits than its factorization.

9885609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1098407 (or 1098404 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The square root of 9885609 is about 3144.1388328126. The cubic root of 9885609 is about 214.6188234342.

The spelling of 9885609 in words is "nine million, eight hundred eighty-five thousand, six hundred nine".