872255188 has 12 divisors (see below), whose sum is σ = 1744510432. Its totient is φ = 373823640.

The previous prime is 872255183. The next prime is 872255207. The reversal of 872255188 is 881552278.

872255188 is an admirable number.

It is a super-2 number, since 2×872255188² = 1521658225985830688, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872255183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15575958 + ... + 15576013.

Almost surely, 2^872255188 is an apocalyptic number.

It is an amenable number.

872255188 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

872255188 is a wasteful number, since it uses less digits than its factorization.

872255188 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31151982 (or 31151980 counting only the distinct ones).

The product of its digits is 358400, while the sum is 46.

The square root of 872255188 is about 29533.9666824489. The cubic root of 872255188 is about 955.4644225589.

The spelling of 872255188 in words is "eight hundred seventy-two million, two hundred fifty-five thousand, one hundred eighty-eight".