9868993 has 4 divisors (see below), whose sum is σ = 10449540. Its totient is φ = 9288448.

The previous prime is 9868981. The next prime is 9869003. The reversal of 9868993 is 3998689.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8105409 + 1763584 = 2847^2 + 1328^2 .

It is a cyclic number.

It is not a de Polignac number, because 9868993 - 2¹³ = 9860801 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9868993.

It is not an unprimeable number, because it can be changed into a prime (9868913) 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, 290248 + ... + 290281.

It is an arithmetic number, because the mean of its divisors is an integer number (2612385).

Almost surely, 2^9868993 is an apocalyptic number.

It is an amenable number.

9868993 is a deficient number, since it is larger than the sum of its proper divisors (580547).

9868993 is a wasteful number, since it uses less digits than its factorization.

9868993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580546.

The product of its digits is 839808, while the sum is 52.

The square root of 9868993 is about 3141.4953445772. The cubic root of 9868993 is about 214.4985102854.

The spelling of 9868993 in words is "nine million, eight hundred sixty-eight thousand, nine hundred ninety-three".