173205830 has 32 divisors (see below), whose sum is σ = 359783424. Its totient is φ = 58805856.

The previous prime is 173205827. The next prime is 173205833. The reversal of 173205830 is 38502371.

It is an interprime number because it is at equal distance from previous prime (173205827) and next prime (173205833).

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 173205793 and 173205802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (173205833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4802 + ... + 19221.

It is an arithmetic number, because the mean of its divisors is an integer number (11243232).

Almost surely, 2^173205830 is an apocalyptic number.

173205830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

173205830 is an abundant number, since it is smaller than the sum of its proper divisors (186577594).

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

173205830 is a wasteful number, since it uses less digits than its factorization.

173205830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24140.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 173205830 is about 13160.7685945768. The cubic root of 173205830 is about 557.4263598632.

The spelling of 173205830 in words is "one hundred seventy-three million, two hundred five thousand, eight hundred thirty".