9988011 has 24 divisors (see below), whose sum is σ = 15842736. Its totient is φ = 6013440.

The previous prime is 9988007. The next prime is 9988057. The reversal of 9988011 is 1108899.

It is not a de Polignac number, because 9988011 - 2² = 9988007 is a prime.

It is a super-2 number, since 2×9988011² = 199520727472242, which contains 22 as substring.

9988011 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9988001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22851 + ... + 23283.

It is an arithmetic number, because the mean of its divisors is an integer number (660114).

Almost surely, 2^9988011 is an apocalyptic number.

9988011 is a deficient number, since it is larger than the sum of its proper divisors (5854725).

9988011 is a wasteful number, since it uses less digits than its factorization.

9988011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683 (or 680 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 36.

The square root of 9988011 is about 3160.3814643172. The cubic root of 9988011 is about 215.3573361808.

It can be divided in two parts, 998 and 8011, that added together give a palindrome (9009).

The spelling of 9988011 in words is "nine million, nine hundred eighty-eight thousand, eleven".