673559 has 4 divisors (see below), whose sum is σ = 675240. Its totient is φ = 671880.

The previous prime is 673553. The next prime is 673567. The reversal of 673559 is 955376.

673559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 673559 - 2¹² = 669463 is a prime.

It is a Duffinian number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 152 + ... + 1170.

It is an arithmetic number, because the mean of its divisors is an integer number (168810).

2⁶⁷³⁵⁵⁹ is an apocalyptic number.

673559 is a deficient number, since it is larger than the sum of its proper divisors (1681).

673559 is a wasteful number, since it uses less digits than its factorization.

673559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680.

The product of its digits is 28350, while the sum is 35.

The square root of 673559 is about 820.7064030456. The cubic root of 673559 is about 87.6580653097.

The spelling of 673559 in words is "six hundred seventy-three thousand, five hundred fifty-nine".