86304321 has 12 divisors (see below), whose sum is σ = 125297172. Its totient is φ = 57242976.

The previous prime is 86304307. The next prime is 86304331. The reversal of 86304321 is 12340368.

It is a happy number.

86304321 is a `hidden beast` number, since 8 + 630 + 4 + 3 + 21 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 70812225 + 15492096 = 8415^2 + 3936^2 .

It is not a de Polignac number, because 86304321 - 2⁹ = 86303809 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (86304301) 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 11 ways as a sum of consecutive naturals, for example, 22566 + ... + 26111.

It is an arithmetic number, because the mean of its divisors is an integer number (10441431).

Almost surely, 2^86304321 is an apocalyptic number.

It is an amenable number.

86304321 is a deficient number, since it is larger than the sum of its proper divisors (38992851).

86304321 is a wasteful number, since it uses less digits than its factorization.

86304321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48880 (or 48877 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 86304321 is about 9290.0118945026. The cubic root of 86304321 is about 441.9205323169.

Adding to 86304321 its reverse (12340368), we get a palindrome (98644689).

The spelling of 86304321 in words is "eighty-six million, three hundred four thousand, three hundred twenty-one".