172606 has 8 divisors (see below), whose sum is σ = 295920. Its totient is φ = 73968.

The previous prime is 172603. The next prime is 172607. The reversal of 172606 is 606271.

172606 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6151 + ... + 6178.

It is an arithmetic number, because the mean of its divisors is an integer number (36990).

2¹⁷²⁶⁰⁶ is an apocalyptic number.

172606 is a deficient number, since it is larger than the sum of its proper divisors (123314).

172606 is a wasteful number, since it uses less digits than its factorization.

172606 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12338.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 172606 is about 415.4587825525. The cubic root of 172606 is about 55.6782140259.

Adding to 172606 its reverse (606271), we get a palindrome (778877).

The spelling of 172606 in words is "one hundred seventy-two thousand, six hundred six".