9720325 has 6 divisors (see below), whose sum is σ = 12053234. Its totient is φ = 7776240.

The previous prime is 9720317. The next prime is 9720353. The reversal of 9720325 is 5230279.

It can be written as a sum of positive squares in 3 ways, for example, as 2316484 + 7403841 = 1522^2 + 2721^2 .

It is not a de Polignac number, because 9720325 - 2³ = 9720317 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 9720293 and 9720302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 194382 + ... + 194431.

Almost surely, 2^9720325 is an apocalyptic number.

It is an amenable number.

9720325 is a deficient number, since it is larger than the sum of its proper divisors (2332909).

9720325 is a wasteful number, since it uses less digits than its factorization.

9720325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388823 (or 388818 counting only the distinct ones).

The product of its (nonzero) digits is 3780, while the sum is 28.

The square root of 9720325 is about 3117.7435750876. The cubic root of 9720325 is about 213.4159768238.

The spelling of 9720325 in words is "nine million, seven hundred twenty thousand, three hundred twenty-five".