9797988 has 12 divisors (see below), whose sum is σ = 22862000. Its totient is φ = 3265992.

The previous prime is 9797959. The next prime is 9797993. The reversal of 9797988 is 8897979.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

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, 408238 + ... + 408261.

Almost surely, 2^9797988 is an apocalyptic number.

It is an amenable number.

9797988 is an abundant number, since it is smaller than the sum of its proper divisors (13064012).

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

9797988 is a wasteful number, since it uses less digits than its factorization.

9797988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 816506 (or 816504 counting only the distinct ones).

The product of its digits is 2286144, while the sum is 57.

The square root of 9797988 is about 3130.1737970918. The cubic root of 9797988 is about 213.9828501120.

Subtracting from 9797988 its reverse (8897979), we obtain a palindrome (900009).

The spelling of 9797988 in words is "nine million, seven hundred ninety-seven thousand, nine hundred eighty-eight".