6438307 has 2 divisors, whose sum is σ = 6438308. Its totient is φ = 6438306.

The previous prime is 6438269. The next prime is 6438331. The reversal of 6438307 is 7038346.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6438307 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6438007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3219153 + 3219154.

It is an arithmetic number, because the mean of its divisors is an integer number (3219154).

Almost surely, 2^6438307 is an apocalyptic number.

6438307 is a deficient number, since it is larger than the sum of its proper divisors (1).

6438307 is an equidigital number, since it uses as much as digits as its factorization.

6438307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 6438307 is about 2537.3819184348. The cubic root of 6438307 is about 186.0332445298.

The spelling of 6438307 in words is "six million, four hundred thirty-eight thousand, three hundred seven".