988887 has 4 divisors (see below), whose sum is σ = 1318520. Its totient is φ = 659256.

The previous prime is 988877. The next prime is 988901. The reversal of 988887 is 788889.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 988887 - 2⁷ = 988759 is a prime.

It is a D-number.

It is a Duffinian 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 (988837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 164812 + ... + 164817.

It is an arithmetic number, because the mean of its divisors is an integer number (329630).

2⁹⁸⁸⁸⁸⁷ is an apocalyptic number.

988887 is a deficient number, since it is larger than the sum of its proper divisors (329633).

988887 is a wasteful number, since it uses less digits than its factorization.

988887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329632.

The product of its digits is 258048, while the sum is 48.

The square root of 988887 is about 994.4279762758. The cubic root of 988887 is about 99.6281859230.

The spelling of 988887 in words is "nine hundred eighty-eight thousand, eight hundred eighty-seven".