674289659 has 2 divisors, whose sum is σ = 674289660. Its totient is φ = 674289658.

The previous prime is 674289647. The next prime is 674289677. The reversal of 674289659 is 956982476.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 674289659 - 2²⁰ = 673241083 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (674289859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337144829 + 337144830.

It is an arithmetic number, because the mean of its divisors is an integer number (337144830).

Almost surely, 2^674289659 is an apocalyptic number.

674289659 is a deficient number, since it is larger than the sum of its proper divisors (1).

674289659 is an equidigital number, since it uses as much as digits as its factorization.

674289659 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The square root of 674289659 is about 25967.0879961539. The cubic root of 674289659 is about 876.8975023958.

The spelling of 674289659 in words is "six hundred seventy-four million, two hundred eighty-nine thousand, six hundred fifty-nine".