86519321 has 4 divisors (see below), whose sum is σ = 98879232. Its totient is φ = 74159412.

The previous prime is 86519309. The next prime is 86519333. The reversal of 86519321 is 12391568.

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 (86519309) and next prime (86519333).

It is a cyclic number.

It is not a de Polignac number, because 86519321 - 2¹⁰ = 86518297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (86519351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6179945 + ... + 6179958.

It is an arithmetic number, because the mean of its divisors is an integer number (24719808).

Almost surely, 2^86519321 is an apocalyptic number.

It is an amenable number.

86519321 is a deficient number, since it is larger than the sum of its proper divisors (12359911).

86519321 is a wasteful number, since it uses less digits than its factorization.

86519321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12359910.

The product of its digits is 12960, while the sum is 35.

The square root of 86519321 is about 9301.5762642683. The cubic root of 86519321 is about 442.2871965585.

The spelling of 86519321 in words is "eighty-six million, five hundred nineteen thousand, three hundred twenty-one".