173803 has 6 divisors (see below), whose sum is σ = 202236. Its totient is φ = 148932.

The previous prime is 173783. The next prime is 173807. The reversal of 173803 is 308371.

It is not a de Polignac number, because 173803 - 2⁹ = 173291 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (173807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1725 + ... + 1822.

It is an arithmetic number, because the mean of its divisors is an integer number (33706).

2¹⁷³⁸⁰³ is an apocalyptic number.

173803 is a deficient number, since it is larger than the sum of its proper divisors (28433).

173803 is an equidigital number, since it uses as much as digits as its factorization.

173803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3561 (or 3554 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 173803 is about 416.8968697412. The cubic root of 173803 is about 55.8066246851.

The spelling of 173803 in words is "one hundred seventy-three thousand, eight hundred three".