674337689 has 2 divisors, whose sum is σ = 674337690. Its totient is φ = 674337688.

The previous prime is 674337679. The next prime is 674337707. The reversal of 674337689 is 986733476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 350625625 + 323712064 = 18725^2 + 17992^2 .

It is a cyclic number.

It is not a de Polignac number, because 674337689 - 2⁴ = 674337673 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 674337689.

It is not a weakly prime, because it can be changed into another prime (674337679) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337168844 + 337168845.

It is an arithmetic number, because the mean of its divisors is an integer number (337168845).

Almost surely, 2^674337689 is an apocalyptic number.

It is an amenable number.

674337689 is a deficient number, since it is larger than the sum of its proper divisors (1).

674337689 is an equidigital number, since it uses as much as digits as its factorization.

674337689 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 53.

The square root of 674337689 is about 25968.0128042174. The cubic root of 674337689 is about 876.9183225218.

The spelling of 674337689 in words is "six hundred seventy-four million, three hundred thirty-seven thousand, six hundred eighty-nine".