6630313 has 2 divisors, whose sum is σ = 6630314. Its totient is φ = 6630312.

The previous prime is 6630293. The next prime is 6630319. The reversal of 6630313 is 3130366.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6615184 + 15129 = 2572^2 + 123^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6630313 is a prime.

It is a super-2 number, since 2×6630313² = 87922100955938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6630319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3315156 + 3315157.

It is an arithmetic number, because the mean of its divisors is an integer number (3315157).

Almost surely, 2^6630313 is an apocalyptic number.

It is an amenable number.

6630313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6630313 is an equidigital number, since it uses as much as digits as its factorization.

6630313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 6630313 is about 2574.9394167630. The cubic root of 6630313 is about 187.8644809529.

Adding to 6630313 its reverse (3130366), we get a palindrome (9760679).

The spelling of 6630313 in words is "six million, six hundred thirty thousand, three hundred thirteen".