86835866 has 16 divisors (see below), whose sum is σ = 140430024. Its totient is φ = 40033344.

The previous prime is 86835863. The next prime is 86835887. The reversal of 86835866 is 66853868.

It can be written as a sum of positive squares in 4 ways, for example, as 82719025 + 4116841 = 9095^2 + 2029^2 .

It is not an unprimeable number, because it can be changed into a prime (86835863) 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 in 7 ways as a sum of consecutive naturals, for example, 37700 + ... + 39936.

Almost surely, 2^86835866 is an apocalyptic number.

86835866 is a deficient number, since it is larger than the sum of its proper divisors (53594158).

86835866 is a wasteful number, since it uses less digits than its factorization.

86835866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3745.

The product of its digits is 1658880, while the sum is 50.

The square root of 86835866 is about 9318.5763934198. The cubic root of 86835866 is about 442.8259332746.

The spelling of 86835866 in words is "eighty-six million, eight hundred thirty-five thousand, eight hundred sixty-six".