6630653 has 2 divisors, whose sum is σ = 6630654. Its totient is φ = 6630652.

The previous prime is 6630641. The next prime is 6630661. The reversal of 6630653 is 3560366.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4401604 + 2229049 = 2098^2 + 1493^2 .

It is a cyclic number.

It is not a de Polignac number, because 6630653 - 2¹⁴ = 6614269 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6630553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315326 + 3315327.

It is an arithmetic number, because the mean of its divisors is an integer number (3315327).

Almost surely, 2^6630653 is an apocalyptic number.

It is an amenable number.

6630653 is a deficient number, since it is larger than the sum of its proper divisors (1).

6630653 is an equidigital number, since it uses as much as digits as its factorization.

6630653 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 29.

The square root of 6630653 is about 2575.0054368875. The cubic root of 6630653 is about 187.8676921050.

The spelling of 6630653 in words is "six million, six hundred thirty thousand, six hundred fifty-three".