9984540 has 24 divisors (see below), whose sum is σ = 27956880. Its totient is φ = 2662528.

The previous prime is 9984521. The next prime is 9984563. The reversal of 9984540 is 454899.

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, 83145 + ... + 83264.

It is an arithmetic number, because the mean of its divisors is an integer number (1164870).

Almost surely, 2^9984540 is an apocalyptic number.

It is an amenable number.

9984540 is an abundant number, since it is smaller than the sum of its proper divisors (17972340).

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

9984540 is a wasteful number, since it uses less digits than its factorization.

9984540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166421 (or 166419 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 9984540 is about 3159.8322740297. The cubic root of 9984540 is about 215.3323865380.

The spelling of 9984540 in words is "nine million, nine hundred eighty-four thousand, five hundred forty".