9988755 has 16 divisors (see below), whose sum is σ = 18265344. Its totient is φ = 4566240.

The previous prime is 9988753. The next prime is 9988757. The reversal of 9988755 is 5578899.

It is an interprime number because it is at equal distance from previous prime (9988753) and next prime (9988757).

It is not a de Polignac number, because 9988755 - 2¹ = 9988753 is a prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 9988698 and 9988707.

It is not an unprimeable number, because it can be changed into a prime (9988753) 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 15 ways as a sum of consecutive naturals, for example, 47461 + ... + 47670.

It is an arithmetic number, because the mean of its divisors is an integer number (1141584).

Almost surely, 2^9988755 is an apocalyptic number.

9988755 is a deficient number, since it is larger than the sum of its proper divisors (8276589).

9988755 is a wasteful number, since it uses less digits than its factorization.

9988755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95146.

The product of its digits is 907200, while the sum is 51.

The square root of 9988755 is about 3160.4991694351. The cubic root of 9988755 is about 215.3626833208.

The spelling of 9988755 in words is "nine million, nine hundred eighty-eight thousand, seven hundred fifty-five".