9784225 has 24 divisors (see below), whose sum is σ = 13534848. Its totient is φ = 6955200.

The previous prime is 9784213. The next prime is 9784249. The reversal of 9784225 is 5224879.

It is not a de Polignac number, because 9784225 - 2⁷ = 9784097 is a prime.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a d-powerful number, because it can be written as 9² + 7 + 8² + 4² + 2¹¹ + 2¹⁴ + 5¹⁰ .

It is a Duffinian 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 23 ways as a sum of consecutive naturals, for example, 12547 + ... + 13303.

It is an arithmetic number, because the mean of its divisors is an integer number (563952).

Almost surely, 2^9784225 is an apocalyptic number.

It is an amenable number.

9784225 is a deficient number, since it is larger than the sum of its proper divisors (3750623).

9784225 is a wasteful number, since it uses less digits than its factorization.

9784225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825 (or 820 counting only the distinct ones).

The product of its digits is 40320, while the sum is 37.

The square root of 9784225 is about 3127.9745842957. The cubic root of 9784225 is about 213.8826109612.

Subtracting from 9784225 its product of digits (40320), we obtain a triangular number (9743905 = T₄₄₁₄).

The spelling of 9784225 in words is "nine million, seven hundred eighty-four thousand, two hundred twenty-five".