6390313 has 2 divisors, whose sum is σ = 6390314. Its totient is φ = 6390312.

The previous prime is 6390281. The next prime is 6390337. The reversal of 6390313 is 3130936.

6390313 = 1787² + 1788².

6390313 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3196944 + 3193369 = 1788^2 + 1787^2 .

It is a cyclic number.

It is not a de Polignac number, because 6390313 - 2⁵ = 6390281 is a prime.

It is a super-2 number, since 2×6390313² = 81672200475938, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6390413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3195156 + 3195157.

It is an arithmetic number, because the mean of its divisors is an integer number (3195157).

Almost surely, 2^6390313 is an apocalyptic number.

6390313 is the 1788-th centered square number.

It is an amenable number.

6390313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6390313 is an equidigital number, since it uses as much as digits as its factorization.

6390313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 6390313 is about 2527.9068416380. The cubic root of 6390313 is about 185.5698329791.

The spelling of 6390313 in words is "six million, three hundred ninety thousand, three hundred thirteen".