87028882069 has 2 divisors, whose sum is σ = 87028882070. Its totient is φ = 87028882068.

The previous prime is 87028882049. The next prime is 87028882079. The reversal of 87028882069 is 96028882078.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 51500401969 + 35528480100 = 226937^2 + 188490^2 .

It is a cyclic number.

It is not a de Polignac number, because 87028882069 - 2²⁹ = 86492011157 is a prime.

It is a super-2 number, since 2×87028882069² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87028882009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43514441034 + 43514441035.

It is an arithmetic number, because the mean of its divisors is an integer number (43514441035).

Almost surely, 2^87028882069 is an apocalyptic number.

It is an amenable number.

87028882069 is a deficient number, since it is larger than the sum of its proper divisors (1).

87028882069 is an equidigital number, since it uses as much as digits as its factorization.

87028882069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6193152, while the sum is 58.

Subtracting 87028882069 from its reverse (96028882078), we obtain a palindrome (9000000009).

The spelling of 87028882069 in words is "eighty-seven billion, twenty-eight million, eight hundred eighty-two thousand, sixty-nine".