1946866 has 8 divisors (see below), whose sum is σ = 2999340. Its totient is φ = 947088.

The previous prime is 1946851. The next prime is 1946869. The reversal of 1946866 is 6686491.

It can be written as a sum of positive squares in 2 ways, for example, as 1946025 + 841 = 1395^2 + 29^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1946869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13081 + ... + 13228.

2^1946866 is an apocalyptic number.

1946866 is a deficient number, since it is larger than the sum of its proper divisors (1052474).

1946866 is a wasteful number, since it uses less digits than its factorization.

1946866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26348.

The product of its digits is 62208, while the sum is 40.

The square root of 1946866 is about 1395.3014011317. The cubic root of 1946866 is about 124.8663317801.

The spelling of 1946866 in words is "one million, nine hundred forty-six thousand, eight hundred sixty-six".