87103517 has 2 divisors, whose sum is σ = 87103518. Its totient is φ = 87103516.

The previous prime is 87103493. The next prime is 87103561. The reversal of 87103517 is 71530178.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44970436 + 42133081 = 6706^2 + 6491^2 .

It is a cyclic number.

It is not a de Polignac number, because 87103517 - 2¹⁸ = 86841373 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87108517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43551758 + 43551759.

It is an arithmetic number, because the mean of its divisors is an integer number (43551759).

Almost surely, 2^87103517 is an apocalyptic number.

It is an amenable number.

87103517 is a deficient number, since it is larger than the sum of its proper divisors (1).

87103517 is an equidigital number, since it uses as much as digits as its factorization.

87103517 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 32.

The square root of 87103517 is about 9332.9264970855. The cubic root of 87103517 is about 443.2804353315.

The spelling of 87103517 in words is "eighty-seven million, one hundred three thousand, five hundred seventeen".