988771 has 12 divisors (see below), whose sum is σ = 1218888. Its totient is φ = 796992.

The previous prime is 988763. The next prime is 988783. The reversal of 988771 is 177889.

It is not a de Polignac number, because 988771 - 2³ = 988763 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (988711) 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 11 ways as a sum of consecutive naturals, for example, 240 + ... + 1426.

It is an arithmetic number, because the mean of its divisors is an integer number (101574).

2⁹⁸⁸⁷⁷¹ is an apocalyptic number.

988771 is a deficient number, since it is larger than the sum of its proper divisors (230117).

988771 is a wasteful number, since it uses less digits than its factorization.

988771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1218 (or 1211 counting only the distinct ones).

The product of its digits is 28224, while the sum is 40.

The square root of 988771 is about 994.3696495771. The cubic root of 988771 is about 99.6242901892.

The spelling of 988771 in words is "nine hundred eighty-eight thousand, seven hundred seventy-one".