87701717 has 2 divisors, whose sum is σ = 87701718. Its totient is φ = 87701716.

The previous prime is 87701707. The next prime is 87701723. The reversal of 87701717 is 71710778.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 72012196 + 15689521 = 8486^2 + 3961^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-87701717 is a prime.

It is a super-3 number, since 3×87701717³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (87701707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43850858 + 43850859.

It is an arithmetic number, because the mean of its divisors is an integer number (43850859).

Almost surely, 2^87701717 is an apocalyptic number.

It is an amenable number.

87701717 is a deficient number, since it is larger than the sum of its proper divisors (1).

87701717 is an equidigital number, since it uses as much as digits as its factorization.

87701717 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19208, while the sum is 38.

The square root of 87701717 is about 9364.9194871072. The cubic root of 87701717 is about 444.2928920614.

The spelling of 87701717 in words is "eighty-seven million, seven hundred one thousand, seven hundred seventeen".