9936820 has 12 divisors (see below), whose sum is σ = 20867364. Its totient is φ = 3974720.

The previous prime is 9936803. The next prime is 9936841. The reversal of 9936820 is 286399.

It can be written as a sum of positive squares in 2 ways, for example, as 7540516 + 2396304 = 2746^2 + 1548^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 9936820.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 248401 + ... + 248440.

It is an arithmetic number, because the mean of its divisors is an integer number (1738947).

Almost surely, 2^9936820 is an apocalyptic number.

It is an amenable number.

9936820 is an abundant number, since it is smaller than the sum of its proper divisors (10930544).

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

9936820 is a wasteful number, since it uses less digits than its factorization.

9936820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496850 (or 496848 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 9936820 is about 3152.2721963688. The cubic root of 9936820 is about 214.9887861467.

The spelling of 9936820 in words is "nine million, nine hundred thirty-six thousand, eight hundred twenty".