9447425 has 24 divisors (see below), whose sum is σ = 12941880. Its totient is φ = 6796800.

The previous prime is 9447419. The next prime is 9447479. The reversal of 9447425 is 5247449.

It can be written as a sum of positive squares in 12 ways, for example, as 8317456 + 1129969 = 2884^2 + 1063^2 .

It is not a de Polignac number, because 9447425 - 2²² = 5253121 is a prime.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12971 + ... + 13679.

It is an arithmetic number, because the mean of its divisors is an integer number (539245).

Almost surely, 2^9447425 is an apocalyptic number.

It is an amenable number.

9447425 is a deficient number, since it is larger than the sum of its proper divisors (3494455).

9447425 is a wasteful number, since it uses less digits than its factorization.

9447425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 773 (or 768 counting only the distinct ones).

The product of its digits is 40320, while the sum is 35.

The square root of 9447425 is about 3073.6663774717. Note that the first 3 decimals coincide. The cubic root of 9447425 is about 211.3997572606.

The spelling of 9447425 in words is "nine million, four hundred forty-seven thousand, four hundred twenty-five".