289326673 has 2 divisors, whose sum is σ = 289326674. Its totient is φ = 289326672.

The previous prime is 289326641. The next prime is 289326727. The reversal of 289326673 is 376623982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179747649 + 109579024 = 13407^2 + 10468^2 .

It is a cyclic number.

It is not a de Polignac number, because 289326673 - 2⁵ = 289326641 is a prime.

It is not a weakly prime, because it can be changed into another prime (289326613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144663336 + 144663337.

It is an arithmetic number, because the mean of its divisors is an integer number (144663337).

Almost surely, 2^289326673 is an apocalyptic number.

It is an amenable number.

289326673 is a deficient number, since it is larger than the sum of its proper divisors (1).

289326673 is an equidigital number, since it uses as much as digits as its factorization.

289326673 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 46.

The square root of 289326673 is about 17009.6053158208. The cubic root of 289326673 is about 661.3979193410.

The spelling of 289326673 in words is "two hundred eighty-nine million, three hundred twenty-six thousand, six hundred seventy-three".