86163805 has 36 divisors (see below), whose sum is σ = 130304052. Its totient is φ = 54512640.

The previous prime is 86163793. The next prime is 86163851. The reversal of 86163805 is 50836168.

It can be written as a sum of positive squares in 6 ways, for example, as 21473956 + 64689849 = 4634^2 + 8043^2 .

It is not a de Polignac number, because 86163805 - 2⁷ = 86163677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 40365 + ... + 42445.

It is an arithmetic number, because the mean of its divisors is an integer number (3619557).

Almost surely, 2^86163805 is an apocalyptic number.

It is an amenable number.

86163805 is a deficient number, since it is larger than the sum of its proper divisors (44140247).

86163805 is a wasteful number, since it uses less digits than its factorization.

86163805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2126 (or 2106 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 86163805 is about 9282.4460677130. The cubic root of 86163805 is about 441.6805650466.

It can be divided in two parts, 86163 and 805, that added together give a palindrome (86968).

The spelling of 86163805 in words is "eighty-six million, one hundred sixty-three thousand, eight hundred five".