6630023 has 2 divisors, whose sum is σ = 6630024. Its totient is φ = 6630022.

The previous prime is 6630011. The next prime is 6630037. The reversal of 6630023 is 3200366.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6630023 - 2²⁰ = 5581447 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 6629977 and 6630004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6630223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315011 + 3315012.

It is an arithmetic number, because the mean of its divisors is an integer number (3315012).

Almost surely, 2^6630023 is an apocalyptic number.

6630023 is a deficient number, since it is larger than the sum of its proper divisors (1).

6630023 is an equidigital number, since it uses as much as digits as its factorization.

6630023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 20.

The square root of 6630023 is about 2574.8831041428. The cubic root of 6630023 is about 187.8617419422.

Adding to 6630023 its reverse (3200366), we get a palindrome (9830389).

The spelling of 6630023 in words is "six million, six hundred thirty thousand, twenty-three".