673944 has 16 divisors (see below), whose sum is σ = 1684920. Its totient is φ = 224640.

The previous prime is 673943. The next prime is 673951. The reversal of 673944 is 449376.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14017 + ... + 14064.

2⁶⁷³⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

673944 is an abundant number, since it is smaller than the sum of its proper divisors (1010976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673944 is a wasteful number, since it uses less digits than its factorization.

673944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28090 (or 28086 counting only the distinct ones).

The product of its digits is 18144, while the sum is 33.

The square root of 673944 is about 820.9409235749. The cubic root of 673944 is about 87.6747636376.

The spelling of 673944 in words is "six hundred seventy-three thousand, nine hundred forty-four".