86865311 has 4 divisors (see below), whose sum is σ = 93547272. Its totient is φ = 80183352.

The previous prime is 86865293. The next prime is 86865349. The reversal of 86865311 is 11356868.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 86865311 - 2²² = 82671007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86862311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3340961 + ... + 3340986.

It is an arithmetic number, because the mean of its divisors is an integer number (23386818).

Almost surely, 2^86865311 is an apocalyptic number.

86865311 is a deficient number, since it is larger than the sum of its proper divisors (6681961).

86865311 is a wasteful number, since it uses less digits than its factorization.

86865311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6681960.

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

The square root of 86865311 is about 9320.1561682195. The cubic root of 86865311 is about 442.8759799381.

The spelling of 86865311 in words is "eighty-six million, eight hundred sixty-five thousand, three hundred eleven".