686895012 has 48 divisors (see below), whose sum is σ = 1782486720. Its totient is φ = 228753216.

The previous prime is 686895007. The next prime is 686895031. The reversal of 686895012 is 210598686.

686895012 is a `hidden beast` number, since 68 + 6 + 89 + 501 + 2 = 666.

686895012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151888 + ... + 156344.

It is an arithmetic number, because the mean of its divisors is an integer number (37135140).

Almost surely, 2^686895012 is an apocalyptic number.

It is an amenable number.

686895012 is an abundant number, since it is smaller than the sum of its proper divisors (1095591708).

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

686895012 is a wasteful number, since it uses less digits than its factorization.

686895012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5897 (or 5889 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 686895012 is about 26208.6819966209. The cubic root of 686895012 is about 882.3281207795.

The spelling of 686895012 in words is "six hundred eighty-six million, eight hundred ninety-five thousand, twelve".