985964219 has 2 divisors, whose sum is σ = 985964220. Its totient is φ = 985964218.

The previous prime is 985964209. The next prime is 985964227. The reversal of 985964219 is 912469589.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 985964219 - 2²⁰ = 984915643 is a prime.

It is a super-2 number, since 2×985964219² = 1944250882296559922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (985964209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492982109 + 492982110.

It is an arithmetic number, because the mean of its divisors is an integer number (492982110).

Almost surely, 2^985964219 is an apocalyptic number.

985964219 is a deficient number, since it is larger than the sum of its proper divisors (1).

985964219 is an equidigital number, since it uses as much as digits as its factorization.

985964219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 53.

The square root of 985964219 is about 31400.0671814568. The cubic root of 985964219 is about 995.2993447961.

The spelling of 985964219 in words is "nine hundred eighty-five million, nine hundred sixty-four thousand, two hundred nineteen".