87548717 has 2 divisors, whose sum is σ = 87548718. Its totient is φ = 87548716.

The previous prime is 87548707. The next prime is 87548749. The reversal of 87548717 is 71784578.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60310756 + 27237961 = 7766^2 + 5219^2 .

It is a cyclic number.

It is not a de Polignac number, because 87548717 - 2¹² = 87544621 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 (87548707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43774358 + 43774359.

It is an arithmetic number, because the mean of its divisors is an integer number (43774359).

Almost surely, 2^87548717 is an apocalyptic number.

It is an amenable number.

87548717 is a deficient number, since it is larger than the sum of its proper divisors (1).

87548717 is an equidigital number, since it uses as much as digits as its factorization.

87548717 is an evil number, because the sum of its binary digits is even.

The product of its digits is 439040, while the sum is 47.

The square root of 87548717 is about 9356.7471377611. The cubic root of 87548717 is about 444.0343780026.

It can be divided in two parts, 8754 and 8717, that added together give a palindrome (17471).

The spelling of 87548717 in words is "eighty-seven million, five hundred forty-eight thousand, seven hundred seventeen".