673973 has 4 divisors (see below), whose sum is σ = 680748. Its totient is φ = 667200.

The previous prime is 673961. The next prime is 673979. The reversal of 673973 is 379376.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 334084 + 339889 = 578^2 + 583^2 .

It is a cyclic number.

It is not a de Polignac number, because 673973 - 2¹⁰ = 672949 is a prime.

It is a Duffinian number.

It is a plaindrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3236 + ... + 3437.

It is an arithmetic number, because the mean of its divisors is an integer number (170187).

2⁶⁷³⁹⁷³ is an apocalyptic number.

It is an amenable number.

673973 is a deficient number, since it is larger than the sum of its proper divisors (6775).

673973 is a wasteful number, since it uses less digits than its factorization.

673973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6774.

The product of its digits is 23814, while the sum is 35.

The square root of 673973 is about 820.9585860444. The cubic root of 673973 is about 87.6760211761.

The spelling of 673973 in words is "six hundred seventy-three thousand, nine hundred seventy-three".