173406 has 8 divisors (see below), whose sum is σ = 346824. Its totient is φ = 57800.

The previous prime is 173359. The next prime is 173429. The reversal of 173406 is 604371.

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

173406 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14445 + ... + 14456.

It is an arithmetic number, because the mean of its divisors is an integer number (43353).

2¹⁷³⁴⁰⁶ is an apocalyptic number.

173406 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

173406 is a wasteful number, since it uses less digits than its factorization.

173406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28906.

The product of its (nonzero) digits is 504, while the sum is 21.

The square root of 173406 is about 416.4204605924. The cubic root of 173406 is about 55.7641012142.

Adding to 173406 its reverse (604371), we get a palindrome (777777).

The spelling of 173406 in words is "one hundred seventy-three thousand, four hundred six".