988688 has 20 divisors (see below), whose sum is σ = 1948908. Its totient is φ = 485760.

The previous prime is 988681. The next prime is 988693. The reversal of 988688 is 886889.

It can be written as a sum of positive squares in 2 ways, for example, as 12544 + 976144 = 112^2 + 988^2 .

It is a super-2 number, since 2×988688² = 1955007922688, which contains 22 as substring.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 988688.

It is not an unprimeable number, because it can be changed into a prime (988681) by changing a digit.

988688 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 470 + ... + 1482.

2⁹⁸⁸⁶⁸⁸ is an apocalyptic number.

It is an amenable number.

988688 is a deficient number, since it is larger than the sum of its proper divisors (960220).

988688 is a wasteful number, since it uses less digits than its factorization.

988688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 1076 counting only the distinct ones).

The product of its digits is 221184, while the sum is 47.

The square root of 988688 is about 994.3279137186. The cubic root of 988688 is about 99.6215025375.

It can be divided in two parts, 9886 and 88, that multiplied together give a palindrome (869968).

The spelling of 988688 in words is "nine hundred eighty-eight thousand, six hundred eighty-eight".