674000689 has 2 divisors, whose sum is σ = 674000690. Its totient is φ = 674000688.

The previous prime is 674000669. The next prime is 674000707. The reversal of 674000689 is 986000476.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 351187600 + 322813089 = 18740^2 + 17967^2 .

It is a cyclic number.

It is not a de Polignac number, because 674000689 - 2¹³ = 673992497 is a prime.

It is not a weakly prime, because it can be changed into another prime (674000669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337000344 + 337000345.

It is an arithmetic number, because the mean of its divisors is an integer number (337000345).

Almost surely, 2^674000689 is an apocalyptic number.

It is an amenable number.

674000689 is a deficient number, since it is larger than the sum of its proper divisors (1).

674000689 is an equidigital number, since it uses as much as digits as its factorization.

674000689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 674000689 is about 25961.5232411351. The cubic root of 674000689 is about 876.7722183161.

The spelling of 674000689 in words is "six hundred seventy-four million, six hundred eighty-nine", and thus it is an aban number.