673555 has 8 divisors (see below), whose sum is σ = 843552. Its totient is φ = 515328.

The previous prime is 673553. The next prime is 673567. The reversal of 673555 is 555376.

673555 = 160² + 161² + ... + 182².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 673555 - 2¹ = 673553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2814 + ... + 3043.

It is an arithmetic number, because the mean of its divisors is an integer number (105444).

2⁶⁷³⁵⁵⁵ is an apocalyptic number.

673555 is a deficient number, since it is larger than the sum of its proper divisors (169997).

673555 is a wasteful number, since it uses less digits than its factorization.

673555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5885.

The product of its digits is 15750, while the sum is 31.

The square root of 673555 is about 820.7039661169. The cubic root of 673555 is about 87.6578917872.

It can be divided in two parts, 6 and 73555, that multiplied together give a triangular number (441330 = T₉₃₉).

The spelling of 673555 in words is "six hundred seventy-three thousand, five hundred fifty-five".