86229889 has 2 divisors, whose sum is σ = 86229890. Its totient is φ = 86229888.

The previous prime is 86229877. The next prime is 86229893. The reversal of 86229889 is 98892268.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75829264 + 10400625 = 8708^2 + 3225^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86229889 is a prime.

It is not a weakly prime, because it can be changed into another prime (86229859) 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, 43114944 + 43114945.

It is an arithmetic number, because the mean of its divisors is an integer number (43114945).

Almost surely, 2^86229889 is an apocalyptic number.

It is an amenable number.

86229889 is a deficient number, since it is larger than the sum of its proper divisors (1).

86229889 is an equidigital number, since it uses as much as digits as its factorization.

86229889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 995328, while the sum is 52.

The square root of 86229889 is about 9286.0050075369. The cubic root of 86229889 is about 441.7934529723.

The spelling of 86229889 in words is "eighty-six million, two hundred twenty-nine thousand, eight hundred eighty-nine".