673723 has 8 divisors (see below), whose sum is σ = 705536. Its totient is φ = 642600.

The previous prime is 673669. The next prime is 673747. The reversal of 673723 is 327376.

673723 is nontrivially palindromic in base 15.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-673723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 673691 and 673700.

It is not an unprimeable number, because it can be changed into a prime (673793) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3088 + ... + 3298.

It is an arithmetic number, because the mean of its divisors is an integer number (88192).

2⁶⁷³⁷²³ is an apocalyptic number.

673723 is a deficient number, since it is larger than the sum of its proper divisors (31813).

673723 is a wasteful number, since it uses less digits than its factorization.

673723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345.

The product of its digits is 5292, while the sum is 28.

The square root of 673723 is about 820.8063108919. The cubic root of 673723 is about 87.6651791414.

The spelling of 673723 in words is "six hundred seventy-three thousand, seven hundred twenty-three".