9715725 has 36 divisors (see below), whose sum is σ = 18014100. Its totient is φ = 4999680.

The previous prime is 9715723. The next prime is 9715747. The reversal of 9715725 is 5275179.

It can be written as a sum of positive squares in 6 ways, for example, as 751689 + 8964036 = 867^2 + 2994^2 .

It is not a de Polignac number, because 9715725 - 2¹ = 9715723 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9715725.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9715723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5781 + ... + 7269.

Almost surely, 2^9715725 is an apocalyptic number.

It is an amenable number.

9715725 is a deficient number, since it is larger than the sum of its proper divisors (8298375).

9715725 is a wasteful number, since it uses less digits than its factorization.

9715725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534 (or 1526 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The square root of 9715725 is about 3117.0057747781. The cubic root of 9715725 is about 213.3823061940.

Subtracting from 9715725 its sum of digits (36), we obtain a square (9715689 = 3117²).

It can be divided in two parts, 9715 and 725, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 9715725 in words is "nine million, seven hundred fifteen thousand, seven hundred twenty-five".