85889959 has 2 divisors, whose sum is σ = 85889960. Its totient is φ = 85889958.

The previous prime is 85889917. The next prime is 85889971. The reversal of 85889959 is 95998858.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85889959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 85889897 and 85889906.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85889989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42944979 + 42944980.

It is an arithmetic number, because the mean of its divisors is an integer number (42944980).

Almost surely, 2^85889959 is an apocalyptic number.

85889959 is a deficient number, since it is larger than the sum of its proper divisors (1).

85889959 is an equidigital number, since it uses as much as digits as its factorization.

85889959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9331200, while the sum is 61.

The square root of 85889959 is about 9267.6835832909. The cubic root of 85889959 is about 441.2121517344.

The spelling of 85889959 in words is "eighty-five million, eight hundred eighty-nine thousand, nine hundred fifty-nine".