86771141 has 2 divisors, whose sum is σ = 86771142. Its totient is φ = 86771140.

The previous prime is 86771053. The next prime is 86771143. The reversal of 86771141 is 14117768.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69722500 + 17048641 = 8350^2 + 4129^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86771141 is a prime.

Together with 86771143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86771143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43385570 + 43385571.

It is an arithmetic number, because the mean of its divisors is an integer number (43385571).

Almost surely, 2^86771141 is an apocalyptic number.

It is an amenable number.

86771141 is a deficient number, since it is larger than the sum of its proper divisors (1).

86771141 is an equidigital number, since it uses as much as digits as its factorization.

86771141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9408, while the sum is 35.

The square root of 86771141 is about 9315.1028443061. The cubic root of 86771141 is about 442.7158826159.

The spelling of 86771141 in words is "eighty-six million, seven hundred seventy-one thousand, one hundred forty-one".