289652089 has 2 divisors, whose sum is σ = 289652090. Its totient is φ = 289652088.

The previous prime is 289652071. The next prime is 289652119. The reversal of 289652089 is 980256982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 271162089 + 18490000 = 16467^2 + 4300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-289652089 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (289652059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144826044 + 144826045.

It is an arithmetic number, because the mean of its divisors is an integer number (144826045).

Almost surely, 2^289652089 is an apocalyptic number.

It is an amenable number.

289652089 is a deficient number, since it is larger than the sum of its proper divisors (1).

289652089 is an equidigital number, since it uses as much as digits as its factorization.

289652089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 622080, while the sum is 49.

The square root of 289652089 is about 17019.1682816758. The cubic root of 289652089 is about 661.6457923553.

The spelling of 289652089 in words is "two hundred eighty-nine million, six hundred fifty-two thousand, eighty-nine".