9988422 has 16 divisors (see below), whose sum is σ = 20259072. Its totient is φ = 3282440.

The previous prime is 9988411. The next prime is 9988453. The reversal of 9988422 is 2248899.

It is a nialpdrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11298 + ... + 12149.

It is an arithmetic number, because the mean of its divisors is an integer number (1266192).

Almost surely, 2^9988422 is an apocalyptic number.

9988422 is an abundant number, since it is smaller than the sum of its proper divisors (10270650).

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

9988422 is a wasteful number, since it uses less digits than its factorization.

9988422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23523.

The product of its digits is 82944, while the sum is 42.

The square root of 9988422 is about 3160.4464874445. The cubic root of 9988422 is about 215.3602900773.

The spelling of 9988422 in words is "nine million, nine hundred eighty-eight thousand, four hundred twenty-two".