855859646 has 16 divisors (see below), whose sum is σ = 1320571728. Its totient is φ = 415838400.

The previous prime is 855859639. The next prime is 855859649. The reversal of 855859646 is 646958558.

855859646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 855859591 and 855859600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (855859649) 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, 32135 + ... + 52386.

It is an arithmetic number, because the mean of its divisors is an integer number (82535733).

Almost surely, 2^855859646 is an apocalyptic number.

855859646 is a deficient number, since it is larger than the sum of its proper divisors (464712082).

855859646 is a wasteful number, since it uses less digits than its factorization.

855859646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84667.

The product of its digits is 10368000, while the sum is 56.

The square root of 855859646 is about 29255.0789778459. The cubic root of 855859646 is about 949.4399824042.

The spelling of 855859646 in words is "eight hundred fifty-five million, eight hundred fifty-nine thousand, six hundred forty-six".