288280669 has 2 divisors, whose sum is σ = 288280670. Its totient is φ = 288280668.

The previous prime is 288280651. The next prime is 288280721. The reversal of 288280669 is 966082882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283484569 + 4796100 = 16837^2 + 2190^2 .

It is a cyclic number.

It is not a de Polignac number, because 288280669 - 2⁵ = 288280637 is a prime.

It is a super-3 number, since 3×288280669³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288280609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144140334 + 144140335.

It is an arithmetic number, because the mean of its divisors is an integer number (144140335).

Almost surely, 2^288280669 is an apocalyptic number.

It is an amenable number.

288280669 is a deficient number, since it is larger than the sum of its proper divisors (1).

288280669 is an equidigital number, since it uses as much as digits as its factorization.

288280669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 663552, while the sum is 49.

The square root of 288280669 is about 16978.8300244746. The cubic root of 288280669 is about 660.5999052718.

The spelling of 288280669 in words is "two hundred eighty-eight million, two hundred eighty thousand, six hundred sixty-nine".