673923 has 8 divisors (see below), whose sum is σ = 937728. Its totient is φ = 429704.

The previous prime is 673921. The next prime is 673943. The reversal of 673923 is 329376.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 673923 - 2¹ = 673921 is a prime.

673923 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (673921) 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 7 ways as a sum of consecutive naturals, for example, 4815 + ... + 4952.

It is an arithmetic number, because the mean of its divisors is an integer number (117216).

2⁶⁷³⁹²³ is an apocalyptic number.

673923 is a deficient number, since it is larger than the sum of its proper divisors (263805).

673923 is a wasteful number, since it uses less digits than its factorization.

673923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9793.

The product of its digits is 6804, while the sum is 30.

The square root of 673923 is about 820.9281332736. The cubic root of 673923 is about 87.6738529837.

It can be divided in two parts, 673 and 923, that added together give a triangular number (1596 = T₅₆).

The spelling of 673923 in words is "six hundred seventy-three thousand, nine hundred twenty-three".