988911 has 24 divisors (see below), whose sum is σ = 1782144. Its totient is φ = 513360.

The previous prime is 988909. The next prime is 988937. The reversal of 988911 is 119889.

It is not a de Polignac number, because 988911 - 2¹ = 988909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988901) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21 + ... + 1406.

It is an arithmetic number, because the mean of its divisors is an integer number (74256).

2⁹⁸⁸⁹¹¹ is an apocalyptic number.

988911 is a deficient number, since it is larger than the sum of its proper divisors (793233).

988911 is a wasteful number, since it uses less digits than its factorization.

988911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451 (or 1448 counting only the distinct ones).

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

The square root of 988911 is about 994.4400434415. The cubic root of 988911 is about 99.6289918988.

It can be divided in two parts, 98 and 8911, that added together give a palindrome (9009).

The spelling of 988911 in words is "nine hundred eighty-eight thousand, nine hundred eleven".