87011 has 2 divisors, whose sum is σ = 87012. Its totient is φ = 87010.

The previous prime is 86993. The next prime is 87013. The reversal of 87011 is 11078.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87011 - 2¹⁴ = 70627 is a prime.

Together with 87013, it forms a pair of twin primes.

It is a Chen prime.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 87011.

It is not a weakly prime, because it can be changed into another prime (87013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43505 + 43506.

It is an arithmetic number, because the mean of its divisors is an integer number (43506).

2⁸⁷⁰¹¹ is an apocalyptic number.

87011 is a deficient number, since it is larger than the sum of its proper divisors (1).

87011 is an equidigital number, since it uses as much as digits as its factorization.

87011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

The square root of 87011 is about 294.9762702320. The cubic root of 87011 is about 44.3123436296.

Adding to 87011 its reverse (11078), we get a palindrome (98089).

The spelling of 87011 in words is "eighty-seven thousand, eleven".