1606843 has 4 divisors (see below), whose sum is σ = 1836400. Its totient is φ = 1377288.

The previous prime is 1606841. The next prime is 1606853. The reversal of 1606843 is 3486061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3486061 = 29 ⋅120209.

It is a cyclic number.

It is not a de Polignac number, because 1606843 - 2¹ = 1606841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1606841) 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, 114768 + ... + 114781.

It is an arithmetic number, because the mean of its divisors is an integer number (459100).

2^1606843 is an apocalyptic number.

1606843 is a deficient number, since it is larger than the sum of its proper divisors (229557).

1606843 is an equidigital number, since it uses as much as digits as its factorization.

1606843 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229556.

The product of its (nonzero) digits is 3456, while the sum is 28.

The square root of 1606843 is about 1267.6131113238. The cubic root of 1606843 is about 117.1272144915.

The spelling of 1606843 in words is "one million, six hundred six thousand, eight hundred forty-three".