1606005823 has 2 divisors, whose sum is σ = 1606005824. Its totient is φ = 1606005822.

The previous prime is 1606005811. The next prime is 1606005829. The reversal of 1606005823 is 3285006061.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606005823 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606005829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803002911 + 803002912.

It is an arithmetic number, because the mean of its divisors is an integer number (803002912).

Almost surely, 2^1606005823 is an apocalyptic number.

1606005823 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606005823 is an equidigital number, since it uses as much as digits as its factorization.

1606005823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1606005823 is about 40075.0024703680. The cubic root of 1606005823 is about 1171.0686957827.

The spelling of 1606005823 in words is "one billion, six hundred six million, five thousand, eight hundred twenty-three".