86112865 has 4 divisors (see below), whose sum is σ = 103335444. Its totient is φ = 68890288.

The previous prime is 86112853. The next prime is 86112869. The reversal of 86112865 is 56821168.

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

It can be written as a sum of positive squares in 2 ways, for example, as 66194496 + 19918369 = 8136^2 + 4463^2 .

It is a cyclic number.

It is not a de Polignac number, because 86112865 - 2¹⁵ = 86080097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86112869) 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, 8611282 + ... + 8611291.

It is an arithmetic number, because the mean of its divisors is an integer number (25833861).

Almost surely, 2^86112865 is an apocalyptic number.

It is an amenable number.

86112865 is a deficient number, since it is larger than the sum of its proper divisors (17222579).

86112865 is a wasteful number, since it uses less digits than its factorization.

86112865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17222578.

The product of its digits is 23040, while the sum is 37.

The square root of 86112865 is about 9279.7017732253. The cubic root of 86112865 is about 441.5935074425.

It can be divided in two parts, 8611 and 2865, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 86112865 in words is "eighty-six million, one hundred twelve thousand, eight hundred sixty-five".