673389 has 6 divisors (see below), whose sum is σ = 972686. Its totient is φ = 448920.

The previous prime is 673381. The next prime is 673391. The reversal of 673389 is 983376.

673389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 562500 + 110889 = 750^2 + 333^2 .

It is not a de Polignac number, because 673389 - 2³ = 673381 is a prime.

It is a Duffinian number.

673389 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673381) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37402 + ... + 37419.

2⁶⁷³³⁸⁹ is an apocalyptic number.

It is an amenable number.

673389 is a deficient number, since it is larger than the sum of its proper divisors (299297).

673389 is a wasteful number, since it uses less digits than its factorization.

673389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74827 (or 74824 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 673389 is about 820.6028271947. The cubic root of 673389 is about 87.6506899969.

The spelling of 673389 in words is "six hundred seventy-three thousand, three hundred eighty-nine".