987118 has 12 divisors (see below), whose sum is σ = 1627920. Its totient is φ = 448580.

The previous prime is 987101. The next prime is 987127. The reversal of 987118 is 811789.

It is a congruent number.

It is an unprimeable number.

987118 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 5 ways as a sum of consecutive naturals, for example, 1798 + ... + 2281.

It is an arithmetic number, because the mean of its divisors is an integer number (135660).

2⁹⁸⁷¹¹⁸ is an apocalyptic number.

987118 is a deficient number, since it is larger than the sum of its proper divisors (640802).

987118 is a wasteful number, since it uses less digits than its factorization.

987118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4103 (or 4092 counting only the distinct ones).

The product of its digits is 4032, while the sum is 34.

The square root of 987118 is about 993.5381220668. The cubic root of 987118 is about 99.5687428462.

It can be divided in two parts, 9871 and 18, that added together give a palindrome (9889).

The spelling of 987118 in words is "nine hundred eighty-seven thousand, one hundred eighteen".