288389293 has 2 divisors, whose sum is σ = 288389294. Its totient is φ = 288389292.

The previous prime is 288389287. The next prime is 288389303. The reversal of 288389293 is 392983882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 248472169 + 39917124 = 15763^2 + 6318^2 .

It is a cyclic number.

It is not a de Polignac number, because 288389293 - 2⁹ = 288388781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 288389293.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288389593) 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, 144194646 + 144194647.

It is an arithmetic number, because the mean of its divisors is an integer number (144194647).

Almost surely, 2^288389293 is an apocalyptic number.

It is an amenable number.

288389293 is a deficient number, since it is larger than the sum of its proper divisors (1).

288389293 is an equidigital number, since it uses as much as digits as its factorization.

288389293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1492992, while the sum is 52.

The square root of 288389293 is about 16982.0285301845. The cubic root of 288389293 is about 660.6828660817.

The spelling of 288389293 in words is "two hundred eighty-eight million, three hundred eighty-nine thousand, two hundred ninety-three".