9920736 has 216 divisors, whose sum is σ = 35479080. Its totient is φ = 2612736.

The previous prime is 9920711. The next prime is 9920737. The reversal of 9920736 is 6370299.

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 9920736.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9920737) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 268110 + ... + 268146.

It is an arithmetic number, because the mean of its divisors is an integer number (164255).

Almost surely, 2^9920736 is an apocalyptic number.

9920736 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9920736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17739540).

9920736 is an abundant number, since it is smaller than the sum of its proper divisors (25558344).

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

9920736 is a wasteful number, since it uses less digits than its factorization.

9920736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 68 counting only the distinct ones).

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

The square root of 9920736 is about 3149.7199875544. The cubic root of 9920736 is about 214.8727279917.

The spelling of 9920736 in words is "nine million, nine hundred twenty thousand, seven hundred thirty-six".