1606043 has 4 divisors (see below), whose sum is σ = 1608768. Its totient is φ = 1603320.

The previous prime is 1606009. The next prime is 1606081. The reversal of 1606043 is 3406061.

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

It is a cyclic number.

It is not a de Polignac number, because 1606043 - 2⁶ = 1605979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606543) 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, 68 + ... + 1793.

It is an arithmetic number, because the mean of its divisors is an integer number (402192).

2^1606043 is an apocalyptic number.

1606043 is a deficient number, since it is larger than the sum of its proper divisors (2725).

1606043 is an equidigital number, since it uses as much as digits as its factorization.

1606043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2724.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1606043 is about 1267.2975183437. The cubic root of 1606043 is about 117.1077731965.

The spelling of 1606043 in words is "one million, six hundred six thousand, forty-three".