173408 has 12 divisors (see below), whose sum is σ = 341460. Its totient is φ = 86688.

The previous prime is 173359. The next prime is 173429. The reversal of 173408 is 804371.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

173408 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2678 + ... + 2741.

It is an arithmetic number, because the mean of its divisors is an integer number (28455).

2¹⁷³⁴⁰⁸ is an apocalyptic number.

It is an amenable number.

173408 is a deficient number, since it is larger than the sum of its proper divisors (168052).

173408 is an equidigital number, since it uses as much as digits as its factorization.

173408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5429 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 173408 is about 416.4228620045. The cubic root of 173408 is about 55.7643156008.

Adding to 173408 its reverse (804371), we get a palindrome (977779).

The spelling of 173408 in words is "one hundred seventy-three thousand, four hundred eight".