9685825 has 6 divisors (see below), whose sum is σ = 12010454. Its totient is φ = 7748640.

The previous prime is 9685817. The next prime is 9685831. The reversal of 9685825 is 5285869.

It can be written as a sum of positive squares in 3 ways, for example, as 1979649 + 7706176 = 1407^2 + 2776^2 .

It is not a de Polignac number, because 9685825 - 2³ = 9685817 is a prime.

It is a Duffinian number.

9685825 is a lucky 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 5 ways as a sum of consecutive naturals, for example, 193692 + ... + 193741.

Almost surely, 2^9685825 is an apocalyptic number.

It is an amenable number.

9685825 is a deficient number, since it is larger than the sum of its proper divisors (2324629).

9685825 is a wasteful number, since it uses less digits than its factorization.

9685825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387443 (or 387438 counting only the distinct ones).

The product of its digits is 172800, while the sum is 43.

The square root of 9685825 is about 3112.2058093899. The cubic root of 9685825 is about 213.1631876315.

The spelling of 9685825 in words is "nine million, six hundred eighty-five thousand, eight hundred twenty-five".