87102317 has 2 divisors, whose sum is σ = 87102318. Its totient is φ = 87102316.

The previous prime is 87102287. The next prime is 87102331. The reversal of 87102317 is 71320178.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54257956 + 32844361 = 7366^2 + 5731^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87102317 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 87102317.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87102017) 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, 43551158 + 43551159.

It is an arithmetic number, because the mean of its divisors is an integer number (43551159).

Almost surely, 2^87102317 is an apocalyptic number.

It is an amenable number.

87102317 is a deficient number, since it is larger than the sum of its proper divisors (1).

87102317 is an equidigital number, since it uses as much as digits as its factorization.

87102317 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2352, while the sum is 29.

The square root of 87102317 is about 9332.8622083474. The cubic root of 87102317 is about 443.2783996733.

The spelling of 87102317 in words is "eighty-seven million, one hundred two thousand, three hundred seventeen".