85333331 has 2 divisors, whose sum is σ = 85333332. Its totient is φ = 85333330.

The previous prime is 85333321. The next prime is 85333357. The reversal of 85333331 is 13333358.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85333331 - 2¹⁴ = 85316947 is a prime.

It is a super-2 number, since 2×85333331² = 14563554759111122, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 85333294 and 85333303.

It is not a weakly prime, because it can be changed into another prime (85333301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42666665 + 42666666.

It is an arithmetic number, because the mean of its divisors is an integer number (42666666).

Almost surely, 2^85333331 is an apocalyptic number.

85333331 is a deficient number, since it is larger than the sum of its proper divisors (1).

85333331 is an equidigital number, since it uses as much as digits as its factorization.

85333331 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

The square root of 85333331 is about 9237.6041807386. The cubic root of 85333331 is about 440.2569625065.

Adding to 85333331 its reverse (13333358), we get a palindrome (98666689).

The spelling of 85333331 in words is "eighty-five million, three hundred thirty-three thousand, three hundred thirty-one".