985899619 has 2 divisors, whose sum is σ = 985899620. Its totient is φ = 985899618.

The previous prime is 985899599. The next prime is 985899641. The reversal of 985899619 is 916998589.

985899619 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 985899619 - 2¹⁷ = 985768547 is a prime.

It is a super-2 number, since 2×985899619² = 1943996117488690322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (985899419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 492949809 + 492949810.

It is an arithmetic number, because the mean of its divisors is an integer number (492949810).

Almost surely, 2^985899619 is an apocalyptic number.

985899619 is a deficient number, since it is larger than the sum of its proper divisors (1).

985899619 is an equidigital number, since it uses as much as digits as its factorization.

985899619 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12597120, while the sum is 64.

The square root of 985899619 is about 31399.0385043874. The cubic root of 985899619 is about 995.2776071101.

The spelling of 985899619 in words is "nine hundred eighty-five million, eight hundred ninety-nine thousand, six hundred nineteen".