288987247 has 2 divisors, whose sum is σ = 288987248. Its totient is φ = 288987246.

The previous prime is 288987173. The next prime is 288987277. The reversal of 288987247 is 742789882.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 288987247 - 2⁷ = 288987119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288987277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144493623 + 144493624.

It is an arithmetic number, because the mean of its divisors is an integer number (144493624).

Almost surely, 2^288987247 is an apocalyptic number.

288987247 is a deficient number, since it is larger than the sum of its proper divisors (1).

288987247 is an equidigital number, since it uses as much as digits as its factorization.

288987247 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3612672, while the sum is 55.

The square root of 288987247 is about 16999.6249076266. The cubic root of 288987247 is about 661.1391766371.

The spelling of 288987247 in words is "two hundred eighty-eight million, nine hundred eighty-seven thousand, two hundred forty-seven".