1966043 has 2 divisors, whose sum is σ = 1966044. Its totient is φ = 1966042.

The previous prime is 1966031. The next prime is 1966049. The reversal of 1966043 is 3406691.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1966043 - 2⁶ = 1965979 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1965997 and 1966015.

It is not a weakly prime, because it can be changed into another prime (1966049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 983021 + 983022.

It is an arithmetic number, because the mean of its divisors is an integer number (983022).

2^1966043 is an apocalyptic number.

1966043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1966043 is an equidigital number, since it uses as much as digits as its factorization.

1966043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1966043 is about 1402.1565533135. The cubic root of 1966043 is about 125.2749786504.

The spelling of 1966043 in words is "one million, nine hundred sixty-six thousand, forty-three".