9636820 has 24 divisors (see below), whose sum is σ = 20377728. Its totient is φ = 3828000.

The previous prime is 9636797. The next prime is 9636827. The reversal of 9636820 is 286369.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9636827) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1425 + ... + 4615.

It is an arithmetic number, because the mean of its divisors is an integer number (849072).

Almost surely, 2^9636820 is an apocalyptic number.

It is an amenable number.

9636820 is an abundant number, since it is smaller than the sum of its proper divisors (10740908).

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

9636820 is a wasteful number, since it uses less digits than its factorization.

9636820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351 (or 3349 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 9636820 is about 3104.3227924944. The cubic root of 9636820 is about 212.8030830861.

The spelling of 9636820 in words is "nine million, six hundred thirty-six thousand, eight hundred twenty".