872028 has 18 divisors (see below), whose sum is σ = 2204384. Its totient is φ = 290664.

The previous prime is 872023. The next prime is 872033. The reversal of 872028 is 820278.

It is an interprime number because it is at equal distance from previous prime (872023) and next prime (872033).

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

It is a junction number, because it is equal to n+sod(n) for n = 871992 and 872010.

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 872028.

It is not an unprimeable number, because it can be changed into a prime (872023) 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, 12076 + ... + 12147.

2⁸⁷²⁰²⁸ is an apocalyptic number.

It is an amenable number.

872028 is an abundant number, since it is smaller than the sum of its proper divisors (1332356).

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

872028 is a wasteful number, since it uses less digits than its factorization.

872028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233 (or 24228 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 27.

The square root of 872028 is about 933.8243946267. The cubic root of 872028 is about 95.5381461784.

The spelling of 872028 in words is "eight hundred seventy-two thousand, twenty-eight".