86304109 has 8 divisors (see below), whose sum is σ = 87160248. Its totient is φ = 85451520.

The previous prime is 86304083. The next prime is 86304133. The reversal of 86304109 is 90140368.

It can be written as a sum of positive squares in 4 ways, for example, as 2490084 + 83814025 = 1578^2 + 9155^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 86304109 - 2¹¹ = 86302061 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 (86304149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84019 + ... + 85039.

It is an arithmetic number, because the mean of its divisors is an integer number (10895031).

Almost surely, 2^86304109 is an apocalyptic number.

It is an amenable number.

86304109 is a deficient number, since it is larger than the sum of its proper divisors (856139).

86304109 is a wasteful number, since it uses less digits than its factorization.

86304109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1775.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 86304109 is about 9290.0004843918. Note that the first 3 decimals coincide. The cubic root of 86304109 is about 441.9201704685.

The spelling of 86304109 in words is "eighty-six million, three hundred four thousand, one hundred nine".