6636023 has 2 divisors, whose sum is σ = 6636024. Its totient is φ = 6636022.

The previous prime is 6636017. The next prime is 6636037. The reversal of 6636023 is 3206366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6636023 - 2²⁰ = 5587447 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 6635983 and 6636001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6636083) 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, 3318011 + 3318012.

It is an arithmetic number, because the mean of its divisors is an integer number (3318012).

Almost surely, 2^6636023 is an apocalyptic number.

6636023 is a deficient number, since it is larger than the sum of its proper divisors (1).

6636023 is an equidigital number, since it uses as much as digits as its factorization.

6636023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 26.

The square root of 6636023 is about 2576.0479421005. The cubic root of 6636023 is about 187.9183948680.

The spelling of 6636023 in words is "six million, six hundred thirty-six thousand, twenty-three".