87355717 has 2 divisors, whose sum is σ = 87355718. Its totient is φ = 87355716.

The previous prime is 87355699. The next prime is 87355733. The reversal of 87355717 is 71755378.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 85544001 + 1811716 = 9249^2 + 1346^2 .

It is a cyclic number.

It is not a de Polignac number, because 87355717 - 2⁷ = 87355589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87355417) 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, 43677858 + 43677859.

It is an arithmetic number, because the mean of its divisors is an integer number (43677859).

Almost surely, 2^87355717 is an apocalyptic number.

It is an amenable number.

87355717 is a deficient number, since it is larger than the sum of its proper divisors (1).

87355717 is an equidigital number, since it uses as much as digits as its factorization.

87355717 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 205800, while the sum is 43.

The square root of 87355717 is about 9346.4280342813. The cubic root of 87355717 is about 443.7078486180.

The spelling of 87355717 in words is "eighty-seven million, three hundred fifty-five thousand, seven hundred seventeen".