9220784 has 10 divisors (see below), whose sum is σ = 17865300. Its totient is φ = 4610384.

The previous prime is 9220763. The next prime is 9220787. The reversal of 9220784 is 4870229.

It is a d-powerful number, because it can be written as 9⁴ + 2¹¹ + 2²³ + 0 + 7⁷ + 8 + 4² .

It is a self number, because there is not a number n which added to its sum of digits gives 9220784.

It is not an unprimeable number, because it can be changed into a prime (9220787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 288134 + ... + 288165.

It is an arithmetic number, because the mean of its divisors is an integer number (1786530).

Almost surely, 2^9220784 is an apocalyptic number.

It is an amenable number.

9220784 is a deficient number, since it is larger than the sum of its proper divisors (8644516).

9220784 is a wasteful number, since it uses less digits than its factorization.

9220784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 576307 (or 576301 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The square root of 9220784 is about 3036.5743857182. The cubic root of 9220784 is about 209.6955831167.

The spelling of 9220784 in words is "nine million, two hundred twenty thousand, seven hundred eighty-four".