7170725 has 12 divisors (see below), whose sum is σ = 8986404. Its totient is φ = 5675520.

The previous prime is 7170721. The next prime is 7170731. The reversal of 7170725 is 5270717.

It can be written as a sum of positive squares in 6 ways, for example, as 784996 + 6385729 = 886^2 + 2527^2 .

It is not a de Polignac number, because 7170725 - 2² = 7170721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7170721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 947 + ... + 3903.

It is an arithmetic number, because the mean of its divisors is an integer number (748867).

Almost surely, 2^7170725 is an apocalyptic number.

It is an amenable number.

7170725 is a deficient number, since it is larger than the sum of its proper divisors (1815679).

7170725 is a wasteful number, since it uses less digits than its factorization.

7170725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064 (or 3059 counting only the distinct ones).

The product of its (nonzero) digits is 3430, while the sum is 29.

The square root of 7170725 is about 2677.8209424829. The cubic root of 7170725 is about 192.8358112143.

The spelling of 7170725 in words is "seven million, one hundred seventy thousand, seven hundred twenty-five".