9988357 has 8 divisors (see below), whose sum is σ = 10596960. Its totient is φ = 9388080.

The previous prime is 9988339. The next prime is 9988361. The reversal of 9988357 is 7538899.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9988357 - 2⁷ = 9988229 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9988357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 483 + ... + 4495.

It is an arithmetic number, because the mean of its divisors is an integer number (1324620).

Almost surely, 2^9988357 is an apocalyptic number.

It is an amenable number.

9988357 is a deficient number, since it is larger than the sum of its proper divisors (608603).

9988357 is a wasteful number, since it uses less digits than its factorization.

9988357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4163.

The product of its digits is 544320, while the sum is 49.

The square root of 9988357 is about 3160.4362040706. The cubic root of 9988357 is about 215.3598229214.

The spelling of 9988357 in words is "nine million, nine hundred eighty-eight thousand, three hundred fifty-seven".