86686241 has 4 divisors (see below), whose sum is σ = 90455232. Its totient is φ = 82917252.

The previous prime is 86686219. The next prime is 86686253. The reversal of 86686241 is 14268668.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86686241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86686211) 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, 1884461 + ... + 1884506.

It is an arithmetic number, because the mean of its divisors is an integer number (22613808).

Almost surely, 2^86686241 is an apocalyptic number.

It is an amenable number.

86686241 is a deficient number, since it is larger than the sum of its proper divisors (3768991).

86686241 is a wasteful number, since it uses less digits than its factorization.

86686241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3768990.

The product of its digits is 110592, while the sum is 41.

The square root of 86686241 is about 9310.5446135014. The cubic root of 86686241 is about 442.5714457930.

The spelling of 86686241 in words is "eighty-six million, six hundred eighty-six thousand, two hundred forty-one".