9120784 has 10 divisors (see below), whose sum is σ = 17671550. Its totient is φ = 4560384.

The previous prime is 9120757. The next prime is 9120791. The reversal of 9120784 is 4870219.

It can be written as a sum of positive squares in only one way, i.e., 8573184 + 547600 = 2928^2 + 740^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 285009 + ... + 285040.

It is an arithmetic number, because the mean of its divisors is an integer number (1767155).

Almost surely, 2^9120784 is an apocalyptic number.

It is an amenable number.

9120784 is a deficient number, since it is larger than the sum of its proper divisors (8550766).

9120784 is a wasteful number, since it uses less digits than its factorization.

9120784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 570057 (or 570051 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 9120784 is about 3020.0635754898. The cubic root of 9120784 is about 208.9347720412.

The spelling of 9120784 in words is "nine million, one hundred twenty thousand, seven hundred eighty-four".