173428605 has 48 divisors (see below), whose sum is σ = 344847360. Its totient is φ = 78983424.

The previous prime is 173428597. The next prime is 173428609. The reversal of 173428605 is 506824371.

173428605 is a `hidden beast` number, since 1 + 7 + 3 + 42 + 8 + 605 = 666.

It is not a de Polignac number, because 173428605 - 2³ = 173428597 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 173428605.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173428609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 97716 + ... + 99474.

It is an arithmetic number, because the mean of its divisors is an integer number (7184320).

Almost surely, 2^173428605 is an apocalyptic number.

173428605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

173428605 is a deficient number, since it is larger than the sum of its proper divisors (171418755).

173428605 is a wasteful number, since it uses less digits than its factorization.

173428605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090 (or 2087 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 173428605 is about 13169.2294763209. The cubic root of 173428605 is about 557.6652422293.

The spelling of 173428605 in words is "one hundred seventy-three million, four hundred twenty-eight thousand, six hundred five".