173426 has 8 divisors (see below), whose sum is σ = 283824. Its totient is φ = 78820.

The previous prime is 173359. The next prime is 173429. The reversal of 173426 is 624371.

173426 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 nialpdrome in base 12.

It is not an unprimeable number, because it can be changed into a prime (173429) by changing a digit.

173426 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, 3920 + ... + 3963.

It is an arithmetic number, because the mean of its divisors is an integer number (35478).

173426 is a Friedman number, since it can be written as 3^(7+4)-61^2, using all its digits and the basic arithmetic operations.

2¹⁷³⁴²⁶ is an apocalyptic number.

173426 is a deficient number, since it is larger than the sum of its proper divisors (110398).

173426 is a wasteful number, since it uses less digits than its factorization.

173426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7896.

The product of its digits is 1008, while the sum is 23.

The square root of 173426 is about 416.4444740899. Note that the first 4 decimals coincide. The cubic root of 173426 is about 55.7662450062.

Adding to 173426 its reverse (624371), we get a palindrome (797797).

It can be divided in two parts, 17 and 3426, that added together give a palindrome (3443).

The spelling of 173426 in words is "one hundred seventy-three thousand, four hundred twenty-six".