86211079 has 2 divisors, whose sum is σ = 86211080. Its totient is φ = 86211078.

The previous prime is 86211067. The next prime is 86211089. The reversal of 86211079 is 97011268.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86211079 - 2¹⁹ = 85686791 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86211089) 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, 43105539 + 43105540.

It is an arithmetic number, because the mean of its divisors is an integer number (43105540).

Almost surely, 2^86211079 is an apocalyptic number.

86211079 is a deficient number, since it is larger than the sum of its proper divisors (1).

86211079 is an equidigital number, since it uses as much as digits as its factorization.

86211079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 86211079 is about 9284.9921378534. The cubic root of 86211079 is about 441.7613266826.

The spelling of 86211079 in words is "eighty-six million, two hundred eleven thousand, seventy-nine".