9720936 has 96 divisors (see below), whose sum is σ = 28009800. Its totient is φ = 3041280.

The previous prime is 9720917. The next prime is 9720937. The reversal of 9720936 is 6390279.

It can be written as a sum of positive squares in 4 ways, for example, as 6502500 + 3218436 = 2550^2 + 1794^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 9720936.

It is not an unprimeable number, because it can be changed into a prime (9720937) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109180 + ... + 109268.

Almost surely, 2^9720936 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 9720936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14004900).

9720936 is an abundant number, since it is smaller than the sum of its proper divisors (18288864).

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

9720936 is a wasteful number, since it uses less digits than its factorization.

9720936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179 (or 172 counting only the distinct ones).

The product of its (nonzero) digits is 20412, while the sum is 36.

The square root of 9720936 is about 3117.8415610804. The cubic root of 9720936 is about 213.4204483626.

The spelling of 9720936 in words is "nine million, seven hundred twenty thousand, nine hundred thirty-six".