9988863 has 8 divisors (see below), whose sum is σ = 13602048. Its totient is φ = 6517464.

The previous prime is 9988817. The next prime is 9988873. The reversal of 9988863 is 3688899.

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

It is not a de Polignac number, because 9988863 - 2⁸ = 9988607 is a prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9988873) 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, 35281 + ... + 35562.

It is an arithmetic number, because the mean of its divisors is an integer number (1700256).

Almost surely, 2^9988863 is an apocalyptic number.

9988863 is a deficient number, since it is larger than the sum of its proper divisors (3613185).

9988863 is a wasteful number, since it uses less digits than its factorization.

9988863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70893.

The product of its digits is 746496, while the sum is 51.

The square root of 9988863 is about 3160.5162552975. The cubic root of 9988863 is about 215.3634594965.

The spelling of 9988863 in words is "nine million, nine hundred eighty-eight thousand, eight hundred sixty-three".