172716 has 24 divisors (see below), whose sum is σ = 414960. Its totient is φ = 55872.

The previous prime is 172709. The next prime is 172717. The reversal of 172716 is 617271.

It is not an unprimeable number, because it can be changed into a prime (172717) by changing a digit.

172716 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 7 ways as a sum of consecutive naturals, for example, 250 + ... + 638.

It is an arithmetic number, because the mean of its divisors is an integer number (17290).

2¹⁷²⁷¹⁶ is an apocalyptic number.

It is an amenable number.

172716 is an abundant number, since it is smaller than the sum of its proper divisors (242244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172716 is a wasteful number, since it uses less digits than its factorization.

172716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433 (or 431 counting only the distinct ones).

The product of its digits is 588, while the sum is 24.

The square root of 172716 is about 415.5911452377. The cubic root of 172716 is about 55.6900392289.

Adding to 172716 its reverse (617271), we get a palindrome (789987).

It can be divided in two parts, 172 and 716, that added together give a palindrome (888).

The spelling of 172716 in words is "one hundred seventy-two thousand, seven hundred sixteen".