85000219 has 2 divisors, whose sum is σ = 85000220. Its totient is φ = 85000218.

The previous prime is 85000183. The next prime is 85000231. The reversal of 85000219 is 91200058.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-85000219 is a prime.

It is a super-2 number, since 2×85000219² = 14450074460095922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 85000193 and 85000202.

It is not a weakly prime, because it can be changed into another prime (85000259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42500109 + 42500110.

It is an arithmetic number, because the mean of its divisors is an integer number (42500110).

Almost surely, 2^85000219 is an apocalyptic number.

85000219 is a deficient number, since it is larger than the sum of its proper divisors (1).

85000219 is an equidigital number, since it uses as much as digits as its factorization.

85000219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 85000219 is about 9219.5563342278. The cubic root of 85000219 is about 439.6833448256.

The spelling of 85000219 in words is "eighty-five million, two hundred nineteen", and thus it is an aban number.