289616077 has 2 divisors, whose sum is σ = 289616078. Its totient is φ = 289616076.

The previous prime is 289616059. The next prime is 289616111. The reversal of 289616077 is 770616982.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236821321 + 52794756 = 15389^2 + 7266^2 .

It is a cyclic number.

It is not a de Polignac number, because 289616077 - 2¹¹ = 289614029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289616017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144808038 + 144808039.

It is an arithmetic number, because the mean of its divisors is an integer number (144808039).

Almost surely, 2^289616077 is an apocalyptic number.

It is an amenable number.

289616077 is a deficient number, since it is larger than the sum of its proper divisors (1).

289616077 is an equidigital number, since it uses as much as digits as its factorization.

289616077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 289616077 is about 17018.1102652439. The cubic root of 289616077 is about 661.6183707499.

The spelling of 289616077 in words is "two hundred eighty-nine million, six hundred sixteen thousand, seventy-seven".