674707289 has 2 divisors, whose sum is σ = 674707290. Its totient is φ = 674707288.

The previous prime is 674707283. The next prime is 674707337. The reversal of 674707289 is 982707476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 622752025 + 51955264 = 24955^2 + 7208^2 .

It is a cyclic number.

It is not a de Polignac number, because 674707289 - 2¹² = 674703193 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (674707283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337353644 + 337353645.

It is an arithmetic number, because the mean of its divisors is an integer number (337353645).

Almost surely, 2^674707289 is an apocalyptic number.

It is an amenable number.

674707289 is a deficient number, since it is larger than the sum of its proper divisors (1).

674707289 is an equidigital number, since it uses as much as digits as its factorization.

674707289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1185408, while the sum is 50.

The square root of 674707289 is about 25975.1282768729. The cubic root of 674707289 is about 877.0785042929.

The spelling of 674707289 in words is "six hundred seventy-four million, seven hundred seven thousand, two hundred eighty-nine".