987712 has 56 divisors (see below), whose sum is σ = 2267712. Its totient is φ = 422400.

The previous prime is 987697. The next prime is 987713. The reversal of 987712 is 217789.

987712 is nontrivially palindromic in base 5.

It is not an unprimeable number, because it can be changed into a prime (987713) by changing a digit.

987712 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16162 + ... + 16222.

2⁹⁸⁷⁷¹² is an apocalyptic number.

987712 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1133856).

987712 is an abundant number, since it is smaller than the sum of its proper divisors (1280000).

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

987712 is a wasteful number, since it uses less digits than its factorization.

987712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107 (or 97 counting only the distinct ones).

The product of its digits is 7056, while the sum is 34.

The square root of 987712 is about 993.8370087695. The cubic root of 987712 is about 99.5887107305.

It can be divided in two parts, 9877 and 12, that added together give a palindrome (9889).

The spelling of 987712 in words is "nine hundred eighty-seven thousand, seven hundred twelve".