85333321 has 2 divisors, whose sum is σ = 85333322. Its totient is φ = 85333320.

The previous prime is 85333309. The next prime is 85333331. The reversal of 85333321 is 12333358.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54686025 + 30647296 = 7395^2 + 5536^2 .

It is a cyclic number.

It is not a de Polignac number, because 85333321 - 2¹³ = 85325129 is a prime.

It is a nialpdrome in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 85333321.

It is not a weakly prime, because it can be changed into another prime (85333301) 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 as a sum of consecutive naturals, namely, 42666660 + 42666661.

It is an arithmetic number, because the mean of its divisors is an integer number (42666661).

Almost surely, 2^85333321 is an apocalyptic number.

It is an amenable number.

85333321 is a deficient number, since it is larger than the sum of its proper divisors (1).

85333321 is an equidigital number, since it uses as much as digits as its factorization.

85333321 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 28.

The square root of 85333321 is about 9237.6036394727. The cubic root of 85333321 is about 440.2569453090.

Adding to 85333321 its reverse (12333358), we get a palindrome (97666679).

The spelling of 85333321 in words is "eighty-five million, three hundred thirty-three thousand, three hundred twenty-one".