872224 has 24 divisors (see below), whose sum is σ = 1741068. Its totient is φ = 430080.

The previous prime is 872203. The next prime is 872227. The reversal of 872224 is 422278.

It can be written as a sum of positive squares in 2 ways, for example, as 868624 + 3600 = 932^2 + 60^2 .

It is not an unprimeable number, because it can be changed into a prime (872227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2964 + ... + 3244.

2⁸⁷²²²⁴ is an apocalyptic number.

It is an amenable number.

872224 is a deficient number, since it is larger than the sum of its proper divisors (868844).

872224 is a wasteful number, since it uses less digits than its factorization.

872224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 388 (or 380 counting only the distinct ones).

The product of its digits is 1792, while the sum is 25.

The square root of 872224 is about 933.9293335151. The cubic root of 872224 is about 95.5453034691.

The spelling of 872224 in words is "eight hundred seventy-two thousand, two hundred twenty-four".