988311 has 8 divisors (see below), whose sum is σ = 1360384. Its totient is φ = 637560.

The previous prime is 988297. The next prime is 988313. The reversal of 988311 is 113889.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 988311 - 2⁵ = 988279 is a prime.

It is a Duffinian number.

988311 is a lucky number.

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (988313) 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 7 ways as a sum of consecutive naturals, for example, 5221 + ... + 5406.

It is an arithmetic number, because the mean of its divisors is an integer number (170048).

2⁹⁸⁸³¹¹ is an apocalyptic number.

988311 is a deficient number, since it is larger than the sum of its proper divisors (372073).

988311 is a wasteful number, since it uses less digits than its factorization.

988311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10661.

The product of its digits is 1728, while the sum is 30.

The square root of 988311 is about 994.1383203559. The cubic root of 988311 is about 99.6088385892.

The spelling of 988311 in words is "nine hundred eighty-eight thousand, three hundred eleven".