85324321 has 8 divisors (see below), whose sum is σ = 88639488. Its totient is φ = 82068000.

The previous prime is 85324297. The next prime is 85324333. The reversal of 85324321 is 12342358.

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 85324321 - 2⁵ = 85324289 is a prime.

It is a super-2 number, since 2×85324321² = 14560479508222082, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85324321.

It is not an unprimeable number, because it can be changed into a prime (85321321) 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, 11745 + ... + 17566.

It is an arithmetic number, because the mean of its divisors is an integer number (11079936).

Almost surely, 2^85324321 is an apocalyptic number.

It is an amenable number.

85324321 is a deficient number, since it is larger than the sum of its proper divisors (3315167).

85324321 is a wasteful number, since it uses less digits than its factorization.

85324321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29423.

The product of its digits is 5760, while the sum is 28.

The square root of 85324321 is about 9237.1164873027. The cubic root of 85324321 is about 440.2414669793.

Adding to 85324321 its reverse (12342358), we get a palindrome (97666679).

The spelling of 85324321 in words is "eighty-five million, three hundred twenty-four thousand, three hundred twenty-one".