874224 has 60 divisors (see below), whose sum is σ = 2640456. Its totient is φ = 268416.

The previous prime is 874217. The next prime is 874229. The reversal of 874224 is 422478.

It is a Cunningham number, because it is equal to 935²-1.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (874229) by changing a digit.

874224 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 (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1639 + ... + 2105.

2⁸⁷⁴²²⁴ 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 874224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1320228).

874224 is an abundant number, since it is smaller than the sum of its proper divisors (1766232).

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

874224 is a wasteful number, since it uses less digits than its factorization.

874224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494 (or 485 counting only the distinct ones).

The product of its digits is 3584, while the sum is 27.

The square root of 874224 is about 934.9994652405. Note that the first 3 decimals coincide. The cubic root of 874224 is about 95.6182758312.

The spelling of 874224 in words is "eight hundred seventy-four thousand, two hundred twenty-four".