673504 has 24 divisors (see below), whose sum is σ = 1428840. Its totient is φ = 310656.

The previous prime is 673499. The next prime is 673513. The reversal of 673504 is 405376.

It is a plaindrome in base 9.

It is a congruent number.

It is an unprimeable number.

673504 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 394 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (59535).

2⁶⁷³⁵⁰⁴ is an apocalyptic number.

It is an amenable number.

673504 is an abundant number, since it is smaller than the sum of its proper divisors (755336).

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

673504 is a wasteful number, since it uses less digits than its factorization.

673504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1642 (or 1634 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 673504 is about 820.6728946420. The cubic root of 673504 is about 87.6556793149.

The spelling of 673504 in words is "six hundred seventy-three thousand, five hundred four".