9170725 has 6 divisors (see below), whose sum is σ = 11371730. Its totient is φ = 7336560.

The previous prime is 9170723. The next prime is 9170729. The reversal of 9170725 is 5270719.

It can be written as a sum of positive squares in 3 ways, for example, as 134689 + 9036036 = 367^2 + 3006^2 .

It is not a de Polignac number, because 9170725 - 2¹ = 9170723 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9170723) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 183390 + ... + 183439.

Almost surely, 2^9170725 is an apocalyptic number.

It is an amenable number.

9170725 is a deficient number, since it is larger than the sum of its proper divisors (2201005).

9170725 is a wasteful number, since it uses less digits than its factorization.

9170725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366839 (or 366834 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 31.

The square root of 9170725 is about 3028.3204916257. The cubic root of 9170725 is about 209.3154200416.

The spelling of 9170725 in words is "nine million, one hundred seventy thousand, seven hundred twenty-five".