1966856 has 16 divisors (see below), whose sum is σ = 3767040. Its totient is φ = 962320.

The previous prime is 1966847. The next prime is 1966871. The reversal of 1966856 is 6586691.

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 in 3 ways as a sum of consecutive naturals, for example, 2240 + ... + 2991.

It is an arithmetic number, because the mean of its divisors is an integer number (235440).

2^1966856 is an apocalyptic number.

It is an amenable number.

1966856 is a deficient number, since it is larger than the sum of its proper divisors (1800184).

1966856 is a wasteful number, since it uses less digits than its factorization.

1966856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5284 (or 5280 counting only the distinct ones).

The product of its digits is 77760, while the sum is 41.

The square root of 1966856 is about 1402.4464339147. The cubic root of 1966856 is about 125.2922442141.

It can be divided in two parts, 196685 and 6, that added together give a palindrome (196691).

The spelling of 1966856 in words is "one million, nine hundred sixty-six thousand, eight hundred fifty-six".