988506 has 12 divisors (see below), whose sum is σ = 2141802. Its totient is φ = 329496.

The previous prime is 988501. The next prime is 988511. The reversal of 988506 is 605889.

It is an interprime number because it is at equal distance from previous prime (988501) and next prime (988511).

It can be written as a sum of positive squares in only one way, i.e., 893025 + 95481 = 945^2 + 309^2 .

It is a super-2 number, since 2×988506² = 1954288224072, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (988501) 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 5 ways as a sum of consecutive naturals, for example, 27441 + ... + 27476.

2⁹⁸⁸⁵⁰⁶ is an apocalyptic number.

988506 is an abundant number, since it is smaller than the sum of its proper divisors (1153296).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

988506 is a wasteful number, since it uses less digits than its factorization.

988506 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54925 (or 54922 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 988506 is about 994.2363904022. The cubic root of 988506 is about 99.6153893093.

The spelling of 988506 in words is "nine hundred eighty-eight thousand, five hundred six".