9919680 has 56 divisors (see below), whose sum is σ = 31498032. Its totient is φ = 2644992.

The previous prime is 9919669. The next prime is 9919681. The reversal of 9919680 is 869199.

It is not an unprimeable number, because it can be changed into a prime (9919681) 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, 4207 + ... + 6126.

Almost surely, 2^9919680 is an apocalyptic number.

It is an amenable number.

9919680 is an abundant number, since it is smaller than the sum of its proper divisors (21578352).

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

9919680 is a wasteful number, since it uses less digits than its factorization.

9919680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10353 (or 10343 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 42.

The square root of 9919680 is about 3149.5523491442. The cubic root of 9919680 is about 214.8651037706.

The spelling of 9919680 in words is "nine million, nine hundred nineteen thousand, six hundred eighty".