8557012 has 24 divisors (see below), whose sum is σ = 15728832. Its totient is φ = 4065600.

The previous prime is 8557007. The next prime is 8557013. The reversal of 8557012 is 2107558.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8557013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25687 + ... + 26017.

It is an arithmetic number, because the mean of its divisors is an integer number (655368).

Almost surely, 2^8557012 is an apocalyptic number.

It is an amenable number.

8557012 is a deficient number, since it is larger than the sum of its proper divisors (7171820).

8557012 is a wasteful number, since it uses less digits than its factorization.

8557012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639 (or 637 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 28.

The square root of 8557012 is about 2925.2370844087. The cubic root of 8557012 is about 204.5380197642.

The spelling of 8557012 in words is "eight million, five hundred fifty-seven thousand, twelve".