86008309 has 4 divisors (see below), whose sum is σ = 86195340. Its totient is φ = 85821280.

The previous prime is 86008301. The next prime is 86008319. The reversal of 86008309 is 90380068.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 35640900 + 50367409 = 5970^2 + 7097^2 .

It is a cyclic number.

It is not a de Polignac number, because 86008309 - 2³ = 86008301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86008301) 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, 92824 + ... + 93745.

It is an arithmetic number, because the mean of its divisors is an integer number (21548835).

Almost surely, 2^86008309 is an apocalyptic number.

It is an amenable number.

86008309 is a deficient number, since it is larger than the sum of its proper divisors (187031).

86008309 is a wasteful number, since it uses less digits than its factorization.

86008309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187030.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 86008309 is about 9274.0664759317. The cubic root of 86008309 is about 441.4147112776.

The spelling of 86008309 in words is "eighty-six million, eight thousand, three hundred nine".