1806023 has 2 divisors, whose sum is σ = 1806024. Its totient is φ = 1806022.

The previous prime is 1806017. The next prime is 1806031. The reversal of 1806023 is 3206081.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1806023 - 2⁸ = 1805767 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1805986 and 1806004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1806223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 903011 + 903012.

It is an arithmetic number, because the mean of its divisors is an integer number (903012).

2^1806023 is an apocalyptic number.

1806023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1806023 is an equidigital number, since it uses as much as digits as its factorization.

1806023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1806023 is about 1343.8835515029. The cubic root of 1806023 is about 121.7795670186.

The spelling of 1806023 in words is "one million, eight hundred six thousand, twenty-three".