9636636 has 12 divisors (see below), whose sum is σ = 22485512. Its totient is φ = 3212208.

The previous prime is 9636631. The next prime is 9636673. The reversal of 9636636 is 6366369.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 9636594 and 9636603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9636631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 401515 + ... + 401538.

Almost surely, 2^9636636 is an apocalyptic number.

It is an amenable number.

9636636 is an abundant number, since it is smaller than the sum of its proper divisors (12848876).

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

9636636 is a wasteful number, since it uses less digits than its factorization.

9636636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803060 (or 803058 counting only the distinct ones).

The product of its digits is 104976, while the sum is 39.

The square root of 9636636 is about 3104.2931562596. The cubic root of 9636636 is about 212.8017286968.

The spelling of 9636636 in words is "nine million, six hundred thirty-six thousand, six hundred thirty-six".