8556872 has 8 divisors (see below), whose sum is σ = 16044150. Its totient is φ = 4278432.

The previous prime is 8556869. The next prime is 8556887. The reversal of 8556872 is 2786558.

It can be written as a sum of positive squares in only one way, i.e., 7150276 + 1406596 = 2674^2 + 1186^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534797 + ... + 534812.

Almost surely, 2^8556872 is an apocalyptic number.

It is an amenable number.

8556872 is a deficient number, since it is larger than the sum of its proper divisors (7487278).

8556872 is a wasteful number, since it uses less digits than its factorization.

8556872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069615 (or 1069611 counting only the distinct ones).

The product of its digits is 134400, while the sum is 41.

The square root of 8556872 is about 2925.2131546265. The cubic root of 8556872 is about 204.5369042861.

The spelling of 8556872 in words is "eight million, five hundred fifty-six thousand, eight hundred seventy-two".