9805625 has 20 divisors (see below), whose sum is σ = 12699060. Its totient is φ = 7560000.

The previous prime is 9805619. The next prime is 9805639. The reversal of 9805625 is 5265089.

It can be written as a sum of positive squares in 10 ways, for example, as 7856809 + 1948816 = 2803^2 + 1396^2 .

It is not a de Polignac number, because 9805625 - 2⁶ = 9805561 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17855 + ... + 18395.

It is an arithmetic number, because the mean of its divisors is an integer number (634953).

Almost surely, 2^9805625 is an apocalyptic number.

It is an amenable number.

9805625 is a deficient number, since it is larger than the sum of its proper divisors (2893435).

9805625 is an equidigital number, since it uses as much as digits as its factorization.

9805625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590 (or 575 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 35.

The square root of 9805625 is about 3131.3934597875. The cubic root of 9805625 is about 214.0384316804.

The spelling of 9805625 in words is "nine million, eight hundred five thousand, six hundred twenty-five".