673717913 has 16 divisors (see below), whose sum is σ = 745041024. Its totient is φ = 604133760.

The previous prime is 673717907. The next prime is 673717943. The reversal of 673717913 is 319717376.

It is a cyclic number.

It is not a de Polignac number, because 673717913 - 2¹⁴ = 673701529 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673717943) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250331 + ... + 253007.

It is an arithmetic number, because the mean of its divisors is an integer number (46565064).

Almost surely, 2^673717913 is an apocalyptic number.

It is an amenable number.

673717913 is a deficient number, since it is larger than the sum of its proper divisors (71323111).

673717913 is a wasteful number, since it uses less digits than its factorization.

673717913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2992.

The product of its digits is 166698, while the sum is 44.

The square root of 673717913 is about 25956.0766103046. The cubic root of 673717913 is about 876.6495849984.

The spelling of 673717913 in words is "six hundred seventy-three million, seven hundred seventeen thousand, nine hundred thirteen".