9639136 has 96 divisors (see below), whose sum is σ = 22861440. Its totient is φ = 3956736.

The previous prime is 9639131. The next prime is 9639151. The reversal of 9639136 is 6319369.

Its product of digits (26244) is a multiple of the sum of its prime divisors (108).

It is a junction number, because it is equal to n+sod(n) for n = 9639095 and 9639104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9639131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205065 + ... + 205111.

It is an arithmetic number, because the mean of its divisors is an integer number (238140).

Almost surely, 2^9639136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9639136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11430720).

9639136 is an abundant number, since it is smaller than the sum of its proper divisors (13222304).

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

9639136 is a wasteful number, since it uses less digits than its factorization.

9639136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116 (or 108 counting only the distinct ones).

The product of its digits is 26244, while the sum is 37.

The square root of 9639136 is about 3104.6957983030. The cubic root of 9639136 is about 212.8201292508.

The spelling of 9639136 in words is "nine million, six hundred thirty-nine thousand, one hundred thirty-six".