673685 has 8 divisors (see below), whose sum is σ = 820896. Its totient is φ = 530640.

The previous prime is 673669. The next prime is 673747. The reversal of 673685 is 586376.

It is a happy number.

673685 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 673685 - 2⁴ = 673669 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 671 + ... + 1340.

It is an arithmetic number, because the mean of its divisors is an integer number (102612).

2⁶⁷³⁶⁸⁵ is an apocalyptic number.

It is an amenable number.

673685 is a deficient number, since it is larger than the sum of its proper divisors (147211).

673685 is a wasteful number, since it uses less digits than its factorization.

673685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083.

The product of its digits is 30240, while the sum is 35.

The square root of 673685 is about 820.7831625953. The cubic root of 673685 is about 87.6635309173.

The spelling of 673685 in words is "six hundred seventy-three thousand, six hundred eighty-five".