9988227 has 12 divisors (see below), whose sum is σ = 14493960. Its totient is φ = 6628128.

The previous prime is 9988213. The next prime is 9988229. The reversal of 9988227 is 7228899.

It is not a de Polignac number, because 9988227 - 2⁴ = 9988211 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (9988229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 402 + ... + 4487.

It is an arithmetic number, because the mean of its divisors is an integer number (1207830).

Almost surely, 2^9988227 is an apocalyptic number.

9988227 is a deficient number, since it is larger than the sum of its proper divisors (4505733).

9988227 is a wasteful number, since it uses less digits than its factorization.

9988227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5122 (or 5119 counting only the distinct ones).

The product of its digits is 145152, while the sum is 45.

The square root of 9988227 is about 3160.4156372224. The cubic root of 9988227 is about 215.3588886036.

The spelling of 9988227 in words is "nine million, nine hundred eighty-eight thousand, two hundred twenty-seven".