9122784 has 96 divisors (see below), whose sum is σ = 26780544. Its totient is φ = 2695680.

The previous prime is 9122759. The next prime is 9122803. The reversal of 9122784 is 4872219.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (33).

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 15 ways as a sum of consecutive naturals, for example, 55887 + ... + 56049.

It is an arithmetic number, because the mean of its divisors is an integer number (278964).

Almost surely, 2^9122784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9122784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13390272).

9122784 is an abundant number, since it is smaller than the sum of its proper divisors (17657760).

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

9122784 is a wasteful number, since it uses less digits than its factorization.

9122784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240 (or 232 counting only the distinct ones).

The product of its digits is 8064, while the sum is 33.

The square root of 9122784 is about 3020.3946761971. The cubic root of 9122784 is about 208.9500426219.

The spelling of 9122784 in words is "nine million, one hundred twenty-two thousand, seven hundred eighty-four".