9985099 has 4 divisors (see below), whose sum is σ = 10228680. Its totient is φ = 9741520.

The previous prime is 9985093. The next prime is 9985109. The reversal of 9985099 is 9905899.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9905899 = 37 ⋅267727.

It is a cyclic number.

It is not a de Polignac number, because 9985099 - 2³ = 9985091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9985091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121729 + ... + 121810.

It is an arithmetic number, because the mean of its divisors is an integer number (2557170).

Almost surely, 2^9985099 is an apocalyptic number.

9985099 is a deficient number, since it is larger than the sum of its proper divisors (243581).

9985099 is a wasteful number, since it uses less digits than its factorization.

9985099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243580.

The product of its (nonzero) digits is 262440, while the sum is 49.

The square root of 9985099 is about 3159.9207268538. The cubic root of 9985099 is about 215.3364050358.

The spelling of 9985099 in words is "nine million, nine hundred eighty-five thousand, ninety-nine".