85600439 has 2 divisors, whose sum is σ = 85600440. Its totient is φ = 85600438.

The previous prime is 85600433. The next prime is 85600469. The reversal of 85600439 is 93400658.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85600439 - 2⁸ = 85600183 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 85600399 and 85600408.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85600433) 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, 42800219 + 42800220.

It is an arithmetic number, because the mean of its divisors is an integer number (42800220).

Almost surely, 2^85600439 is an apocalyptic number.

85600439 is a deficient number, since it is larger than the sum of its proper divisors (1).

85600439 is an equidigital number, since it uses as much as digits as its factorization.

85600439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 85600439 is about 9252.0505294772. The cubic root of 85600439 is about 440.7158440462.

The spelling of 85600439 in words is "eighty-five million, six hundred thousand, four hundred thirty-nine".