9920996 has 12 divisors (see below), whose sum is σ = 18383148. Its totient is φ = 4668672.

The previous prime is 9920993. The next prime is 9921001. The reversal of 9920996 is 6990299.

9920996 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 5569600 + 4351396 = 2360^2 + 2086^2 .

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9920993) 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, 72881 + ... + 73016.

It is an arithmetic number, because the mean of its divisors is an integer number (1531929).

Almost surely, 2^9920996 is an apocalyptic number.

It is an amenable number.

9920996 is a deficient number, since it is larger than the sum of its proper divisors (8462152).

9920996 is a wasteful number, since it uses less digits than its factorization.

9920996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145918 (or 145916 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 44.

The square root of 9920996 is about 3149.7612607942. The cubic root of 9920996 is about 214.8746050843.

The spelling of 9920996 in words is "nine million, nine hundred twenty thousand, nine hundred ninety-six".