6394247 has 2 divisors, whose sum is σ = 6394248. Its totient is φ = 6394246.

The previous prime is 6394231. The next prime is 6394249. The reversal of 6394247 is 7424936.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6394247 - 2⁴ = 6394231 is a prime.

Together with 6394249, it forms a pair of twin primes.

It is a Chen prime.

It is a d-powerful number, because it can be written as 6² + 3⁹ + 9³ + 4⁸ + 2²¹ + 4¹¹ + 7⁵ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6394249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3197123 + 3197124.

It is an arithmetic number, because the mean of its divisors is an integer number (3197124).

Almost surely, 2^6394247 is an apocalyptic number.

6394247 is a deficient number, since it is larger than the sum of its proper divisors (1).

6394247 is an equidigital number, since it uses as much as digits as its factorization.

6394247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 35.

The square root of 6394247 is about 2528.6848360363. The cubic root of 6394247 is about 185.6079052909.

The spelling of 6394247 in words is "six million, three hundred ninety-four thousand, two hundred forty-seven".