872244 has 18 divisors (see below), whose sum is σ = 2204930. Its totient is φ = 290736.

The previous prime is 872243. The next prime is 872251. The reversal of 872244 is 442278.

It can be written as a sum of positive squares in only one way, i.e., 580644 + 291600 = 762^2 + 540^2 .

It is a tau number, because it is divible by the number of its divisors (18).

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 872244.

It is not an unprimeable number, because it can be changed into a prime (872243) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 12079 + ... + 12150.

2⁸⁷²²⁴⁴ is an apocalyptic number.

It is an amenable number.

872244 is an abundant number, since it is smaller than the sum of its proper divisors (1332686).

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

872244 is a wasteful number, since it uses less digits than its factorization.

872244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24239 (or 24234 counting only the distinct ones).

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

The square root of 872244 is about 933.9400409020. The cubic root of 872244 is about 95.5460337446.

The spelling of 872244 in words is "eight hundred seventy-two thousand, two hundred forty-four".