86395809 has 4 divisors (see below), whose sum is σ = 115194416. Its totient is φ = 57597204.

The previous prime is 86395807. The next prime is 86395811. The reversal of 86395809 is 90859368.

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 an interprime number because it is at equal distance from previous prime (86395807) and next prime (86395811).

It is not a de Polignac number, because 86395809 - 2¹ = 86395807 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86395801) 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, 14399299 + ... + 14399304.

It is an arithmetic number, because the mean of its divisors is an integer number (28798604).

Almost surely, 2^86395809 is an apocalyptic number.

It is an amenable number.

86395809 is a deficient number, since it is larger than the sum of its proper divisors (28798607).

86395809 is a wasteful number, since it uses less digits than its factorization.

86395809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28798606.

The product of its (nonzero) digits is 466560, while the sum is 48.

The square root of 86395809 is about 9294.9345882583. The cubic root of 86395809 is about 442.0766316768.

The spelling of 86395809 in words is "eighty-six million, three hundred ninety-five thousand, eight hundred nine".