1666083 has 4 divisors (see below), whose sum is σ = 2221448. Its totient is φ = 1110720.

The previous prime is 1666081. The next prime is 1666111. The reversal of 1666083 is 3806661.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1666083 - 2¹ = 1666081 is a prime.

It is a D-number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1666083.

It is not an unprimeable number, because it can be changed into a prime (1666081) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277678 + ... + 277683.

It is an arithmetic number, because the mean of its divisors is an integer number (555362).

2^1666083 is an apocalyptic number.

1666083 is a deficient number, since it is larger than the sum of its proper divisors (555365).

1666083 is an equidigital number, since it uses as much as digits as its factorization.

1666083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555364.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 1666083 is about 1290.7683758134. The cubic root of 1666083 is about 118.5492682667.

The spelling of 1666083 in words is "one million, six hundred sixty-six thousand, eighty-three".