9985019 has 16 divisors (see below), whose sum is σ = 11409120. Its totient is φ = 8655360.

The previous prime is 9984991. The next prime is 9985021. The reversal of 9985019 is 9105899.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9985019 is a prime.

It is a super-2 number, since 2×9985019² = 199401208860722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9985319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35909 + ... + 36185.

It is an arithmetic number, because the mean of its divisors is an integer number (713070).

Almost surely, 2^9985019 is an apocalyptic number.

9985019 is a deficient number, since it is larger than the sum of its proper divisors (1424101).

9985019 is a wasteful number, since it uses less digits than its factorization.

9985019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 9985019 is about 3159.9080682830. The cubic root of 9985019 is about 215.3358299470.

The spelling of 9985019 in words is "nine million, nine hundred eighty-five thousand, nineteen".