86845871 has 8 divisors (see below), whose sum is σ = 99612960. Its totient is φ = 74168928.

The previous prime is 86845867. The next prime is 86845873. The reversal of 86845871 is 17854868.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86845871 - 2² = 86845867 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86845873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20456 + ... + 24333.

It is an arithmetic number, because the mean of its divisors is an integer number (12451620).

Almost surely, 2^86845871 is an apocalyptic number.

86845871 is a deficient number, since it is larger than the sum of its proper divisors (12767089).

86845871 is a wasteful number, since it uses less digits than its factorization.

86845871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45073.

The product of its digits is 430080, while the sum is 47.

The square root of 86845871 is about 9319.1132088842. The cubic root of 86845871 is about 442.8429397011.

The spelling of 86845871 in words is "eighty-six million, eight hundred forty-five thousand, eight hundred seventy-one".