86536811 has 4 divisors (see below), whose sum is σ = 91091400. Its totient is φ = 81982224.

The previous prime is 86536799. The next prime is 86536829. The reversal of 86536811 is 11863568.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86536811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86536831) 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 in 3 ways as a sum of consecutive naturals, for example, 2277266 + ... + 2277303.

It is an arithmetic number, because the mean of its divisors is an integer number (22772850).

Almost surely, 2^86536811 is an apocalyptic number.

86536811 is a deficient number, since it is larger than the sum of its proper divisors (4554589).

86536811 is a wasteful number, since it uses less digits than its factorization.

86536811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4554588.

The product of its digits is 34560, while the sum is 38.

The square root of 86536811 is about 9302.5163799910. The cubic root of 86536811 is about 442.3169975393.

The spelling of 86536811 in words is "eighty-six million, five hundred thirty-six thousand, eight hundred eleven".