673736717 has 2 divisors, whose sum is σ = 673736718. Its totient is φ = 673736716.

The previous prime is 673736711. The next prime is 673736759. The reversal of 673736717 is 717637376.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 598585156 + 75151561 = 24466^2 + 8669^2 .

It is a cyclic number.

It is not a de Polignac number, because 673736717 - 2⁸ = 673736461 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673736711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336868358 + 336868359.

It is an arithmetic number, because the mean of its divisors is an integer number (336868359).

Almost surely, 2^673736717 is an apocalyptic number.

It is an amenable number.

673736717 is a deficient number, since it is larger than the sum of its proper divisors (1).

673736717 is an equidigital number, since it uses as much as digits as its factorization.

673736717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 777924, while the sum is 47.

The square root of 673736717 is about 25956.4388350945. The cubic root of 673736717 is about 876.6577409171.

The spelling of 673736717 in words is "six hundred seventy-three million, seven hundred thirty-six thousand, seven hundred seventeen".