86206689 has 12 divisors (see below), whose sum is σ = 126380176. Its totient is φ = 56612952.

The previous prime is 86206669. The next prime is 86206717. The reversal of 86206689 is 98660268.

It is not a de Polignac number, because 86206689 - 2⁵ = 86206657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86206619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 70879 + ... + 72084.

Almost surely, 2^86206689 is an apocalyptic number.

It is an amenable number.

86206689 is a deficient number, since it is larger than the sum of its proper divisors (40173487).

86206689 is a wasteful number, since it uses less digits than its factorization.

86206689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143036 (or 143033 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 45.

The square root of 86206689 is about 9284.7557318435. The cubic root of 86206689 is about 441.7538281679.

The spelling of 86206689 in words is "eighty-six million, two hundred six thousand, six hundred eighty-nine".