987224 has 48 divisors (see below), whose sum is σ = 2284080. Its totient is φ = 391680.

The previous prime is 987211. The next prime is 987227. The reversal of 987224 is 422789.

It is a super-2 number, since 2×987224² = 1949222452352, which contains 22 as substring.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 987224.

It is not an unprimeable number, because it can be changed into a prime (987227) by changing a digit.

987224 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 11 ways as a sum of consecutive naturals, for example, 16154 + ... + 16214.

It is an arithmetic number, because the mean of its divisors is an integer number (47585).

2⁹⁸⁷²²⁴ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 987224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142040).

987224 is an abundant number, since it is smaller than the sum of its proper divisors (1296856).

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

987224 is a wasteful number, since it uses less digits than its factorization.

987224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108 (or 87 counting only the distinct ones).

The product of its digits is 8064, while the sum is 32.

The square root of 987224 is about 993.5914653418. The cubic root of 987224 is about 99.5723067258.

The spelling of 987224 in words is "nine hundred eighty-seven thousand, two hundred twenty-four".