173304473 has 4 divisors (see below), whose sum is σ = 173351040. Its totient is φ = 173257908.

The previous prime is 173304457. The next prime is 173304497. The reversal of 173304473 is 374403371.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 374403371 = 131 ⋅2858041.

It is a cyclic number.

It is not a de Polignac number, because 173304473 - 2⁴ = 173304457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (173304413) 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 3 ways as a sum of consecutive naturals, for example, 17165 + ... + 25322.

It is an arithmetic number, because the mean of its divisors is an integer number (43337760).

Almost surely, 2^173304473 is an apocalyptic number.

It is an amenable number.

173304473 is a deficient number, since it is larger than the sum of its proper divisors (46567).

173304473 is an equidigital number, since it uses as much as digits as its factorization.

173304473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46566.

The product of its (nonzero) digits is 21168, while the sum is 32.

The square root of 173304473 is about 13164.5156766210. The cubic root of 173304473 is about 557.5321603305.

The spelling of 173304473 in words is "one hundred seventy-three million, three hundred four thousand, four hundred seventy-three".