9127998 has 64 divisors (see below), whose sum is σ = 22487040. Its totient is φ = 2744280.

The previous prime is 9127957. The next prime is 9128003. The reversal of 9127998 is 8997219.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 71811 + ... + 71937.

It is an arithmetic number, because the mean of its divisors is an integer number (351360).

Almost surely, 2^9127998 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9127998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11243520).

9127998 is an abundant number, since it is smaller than the sum of its proper divisors (13359042).

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

9127998 is a wasteful number, since it uses less digits than its factorization.

9127998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 143 counting only the distinct ones).

The product of its digits is 81648, while the sum is 45.

The square root of 9127998 is about 3021.2576851371. The cubic root of 9127998 is about 208.9898425350.

The spelling of 9127998 in words is "nine million, one hundred twenty-seven thousand, nine hundred ninety-eight".