287402002289 has 2 divisors, whose sum is σ = 287402002290. Its totient is φ = 287402002288.

The previous prime is 287402002219. The next prime is 287402002301. The reversal of 287402002289 is 982200204782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211592640064 + 75809362225 = 459992^2 + 275335^2 .

It is a cyclic number.

It is not a de Polignac number, because 287402002289 - 2³² = 283107034993 is a prime.

It is a super-2 number, since 2×287402002289² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (287402002219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143701001144 + 143701001145.

It is an arithmetic number, because the mean of its divisors is an integer number (143701001145).

Almost surely, 2^287402002289 is an apocalyptic number.

It is an amenable number.

287402002289 is a deficient number, since it is larger than the sum of its proper divisors (1).

287402002289 is an equidigital number, since it uses as much as digits as its factorization.

287402002289 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 44.

The spelling of 287402002289 in words is "two hundred eighty-seven billion, four hundred two million, two thousand, two hundred eighty-nine".