289073297 has 2 divisors, whose sum is σ = 289073298. Its totient is φ = 289073296.

The previous prime is 289073263. The next prime is 289073303. The reversal of 289073297 is 792370982.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 270142096 + 18931201 = 16436^2 + 4351^2 .

It is a cyclic number.

It is not a de Polignac number, because 289073297 - 2¹² = 289069201 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289073227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144536648 + 144536649.

It is an arithmetic number, because the mean of its divisors is an integer number (144536649).

Almost surely, 2^289073297 is an apocalyptic number.

It is an amenable number.

289073297 is a deficient number, since it is larger than the sum of its proper divisors (1).

289073297 is an equidigital number, since it uses as much as digits as its factorization.

289073297 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 289073297 is about 17002.1556574453. The cubic root of 289073297 is about 661.2047912746.

The spelling of 289073297 in words is "two hundred eighty-nine million, seventy-three thousand, two hundred ninety-seven".