86866071 has 4 divisors (see below), whose sum is σ = 115821432. Its totient is φ = 57910712.

The previous prime is 86866067. The next prime is 86866163. The reversal of 86866071 is 17066868.

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 86866071 - 2² = 86866067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86866051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14477676 + ... + 14477681.

It is an arithmetic number, because the mean of its divisors is an integer number (28955358).

Almost surely, 2^86866071 is an apocalyptic number.

86866071 is a deficient number, since it is larger than the sum of its proper divisors (28955361).

86866071 is a wasteful number, since it uses less digits than its factorization.

86866071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28955360.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 86866071 is about 9320.1969399793. The cubic root of 86866071 is about 442.8772715344.

The spelling of 86866071 in words is "eighty-six million, eight hundred sixty-six thousand, seventy-one".