673913 has 4 divisors (see below), whose sum is σ = 678528. Its totient is φ = 669300.

The previous prime is 673891. The next prime is 673921. The reversal of 673913 is 319376.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 673913 - 2¹⁴ = 657529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673943) 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, 2081 + ... + 2382.

It is an arithmetic number, because the mean of its divisors is an integer number (169632).

2⁶⁷³⁹¹³ is an apocalyptic number.

It is an amenable number.

673913 is a deficient number, since it is larger than the sum of its proper divisors (4615).

673913 is a wasteful number, since it uses less digits than its factorization.

673913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4614.

The product of its digits is 3402, while the sum is 29.

The square root of 673913 is about 820.9220425838. The cubic root of 673913 is about 87.6734193324.

The spelling of 673913 in words is "six hundred seventy-three thousand, nine hundred thirteen".