675891289 has 2 divisors, whose sum is σ = 675891290. Its totient is φ = 675891288.

The previous prime is 675891277. The next prime is 675891353. The reversal of 675891289 is 982198576.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 419635225 + 256256064 = 20485^2 + 16008^2 .

It is a cyclic number.

It is not a de Polignac number, because 675891289 - 2⁵ = 675891257 is a prime.

It is not a weakly prime, because it can be changed into another prime (675891259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 337945644 + 337945645.

It is an arithmetic number, because the mean of its divisors is an integer number (337945645).

Almost surely, 2^675891289 is an apocalyptic number.

It is an amenable number.

675891289 is a deficient number, since it is larger than the sum of its proper divisors (1).

675891289 is an equidigital number, since it uses as much as digits as its factorization.

675891289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 55.

The square root of 675891289 is about 25997.9093197895. The cubic root of 675891289 is about 877.5912471840.

The spelling of 675891289 in words is "six hundred seventy-five million, eight hundred ninety-one thousand, two hundred eighty-nine".