85430333 has 2 divisors, whose sum is σ = 85430334. Its totient is φ = 85430332.

The previous prime is 85430309. The next prime is 85430339. The reversal of 85430333 is 33303458.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84235684 + 1194649 = 9178^2 + 1093^2 .

It is a cyclic number.

It is not a de Polignac number, because 85430333 - 2⁶ = 85430269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 85430296 and 85430305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85430339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42715166 + 42715167.

It is an arithmetic number, because the mean of its divisors is an integer number (42715167).

Almost surely, 2^85430333 is an apocalyptic number.

It is an amenable number.

85430333 is a deficient number, since it is larger than the sum of its proper divisors (1).

85430333 is an equidigital number, since it uses as much as digits as its factorization.

85430333 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12960, while the sum is 29.

The square root of 85430333 is about 9242.8530768373. The cubic root of 85430333 is about 440.4237188949.

The spelling of 85430333 in words is "eighty-five million, four hundred thirty thousand, three hundred thirty-three".