1966333 has 4 divisors (see below), whose sum is σ = 1969660. Its totient is φ = 1963008.

The previous prime is 1966331. The next prime is 1966337. The reversal of 1966333 is 3336691.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3336691 = 769 ⋅4339.

It can be written as a sum of positive squares in 2 ways, for example, as 806404 + 1159929 = 898^2 + 1077^2 .

It is a cyclic number.

It is not a de Polignac number, because 1966333 - 2¹ = 1966331 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1966295 and 1966304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1966331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 510 + ... + 2047.

It is an arithmetic number, because the mean of its divisors is an integer number (492415).

2^1966333 is an apocalyptic number.

It is an amenable number.

1966333 is a deficient number, since it is larger than the sum of its proper divisors (3327).

1966333 is an equidigital number, since it uses as much as digits as its factorization.

1966333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3326.

The product of its digits is 8748, while the sum is 31.

The square root of 1966333 is about 1402.2599616334. The cubic root of 1966333 is about 125.2811378845.

The spelling of 1966333 in words is "one million, nine hundred sixty-six thousand, three hundred thirty-three".