87596681 has 2 divisors, whose sum is σ = 87596682. Its totient is φ = 87596680.

The previous prime is 87596657. The next prime is 87596711. The reversal of 87596681 is 18669578.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 87516025 + 80656 = 9355^2 + 284^2 .

It is a cyclic number.

It is not a de Polignac number, because 87596681 - 2²² = 83402377 is a prime.

It is a super-2 number, since 2×87596681² = 15346357044431522, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (87596081) 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, 43798340 + 43798341.

It is an arithmetic number, because the mean of its divisors is an integer number (43798341).

Almost surely, 2^87596681 is an apocalyptic number.

It is an amenable number.

87596681 is a deficient number, since it is larger than the sum of its proper divisors (1).

87596681 is an equidigital number, since it uses as much as digits as its factorization.

87596681 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 725760, while the sum is 50.

The square root of 87596681 is about 9359.3098570354. The cubic root of 87596681 is about 444.1154520128.

The spelling of 87596681 in words is "eighty-seven million, five hundred ninety-six thousand, six hundred eighty-one".