289766069 has 2 divisors, whose sum is σ = 289766070. Its totient is φ = 289766068.

The previous prime is 289766053. The next prime is 289766107. The reversal of 289766069 is 960667982.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 208080625 + 81685444 = 14425^2 + 9038^2 .

It is a cyclic number.

It is not a de Polignac number, because 289766069 - 2⁴ = 289766053 is a prime.

It is a super-2 number, since 2×289766069² = 167928749487425522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 289766069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (289766039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144883034 + 144883035.

It is an arithmetic number, because the mean of its divisors is an integer number (144883035).

Almost surely, 2^289766069 is an apocalyptic number.

It is an amenable number.

289766069 is a deficient number, since it is larger than the sum of its proper divisors (1).

289766069 is an equidigital number, since it uses as much as digits as its factorization.

289766069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1959552, while the sum is 53.

The square root of 289766069 is about 17022.5165295852. The cubic root of 289766069 is about 661.7325682960.

The spelling of 289766069 in words is "two hundred eighty-nine million, seven hundred sixty-six thousand, sixty-nine".