7172 has 12 divisors (see below), whose sum is σ = 13776. Its totient is φ = 3240.

The previous prime is 7159. The next prime is 7177. The reversal of 7172 is 2717.

It is a happy number.

It is a plaindrome in base 13.

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 7172.

It is not an unprimeable number, because it can be changed into a prime (7177) by changing a digit.

7172 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38 + ... + 125.

It is an arithmetic number, because the mean of its divisors is an integer number (1148).

2⁷¹⁷² is an apocalyptic number.

It is an amenable number.

7172 is a deficient number, since it is larger than the sum of its proper divisors (6604).

7172 is a wasteful number, since it uses less digits than its factorization.

7172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178 (or 176 counting only the distinct ones).

The product of its digits is 98, while the sum is 17.

The square root of 7172 is about 84.6876614390. The cubic root of 7172 is about 19.2847239677.

Adding to 7172 its reverse (2717), we get a palindrome (9889).

The spelling of 7172 in words is "seven thousand, one hundred seventy-two", and thus it is an iban number.