86936009 has 4 divisors (see below), whose sum is σ = 87348240. Its totient is φ = 86523780.

The previous prime is 86935993. The next prime is 86936023. The reversal of 86936009 is 90063968.

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 not a de Polignac number, because 86936009 - 2⁴ = 86935993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86936029) 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, 205799 + ... + 206220.

It is an arithmetic number, because the mean of its divisors is an integer number (21837060).

Almost surely, 2^86936009 is an apocalyptic number.

It is an amenable number.

86936009 is a deficient number, since it is larger than the sum of its proper divisors (412231).

86936009 is a wasteful number, since it uses less digits than its factorization.

86936009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412230.

The product of its (nonzero) digits is 69984, while the sum is 41.

The square root of 86936009 is about 9323.9481444289. The cubic root of 86936009 is about 442.9960967610.

The spelling of 86936009 in words is "eighty-six million, nine hundred thirty-six thousand, nine".