6398291 has 2 divisors, whose sum is σ = 6398292. Its totient is φ = 6398290.

The previous prime is 6398281. The next prime is 6398297. The reversal of 6398291 is 1928936.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6398291 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6398297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3199145 + 3199146.

It is an arithmetic number, because the mean of its divisors is an integer number (3199146).

Almost surely, 2^6398291 is an apocalyptic number.

6398291 is a deficient number, since it is larger than the sum of its proper divisors (1).

6398291 is an equidigital number, since it uses as much as digits as its factorization.

6398291 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 38.

The square root of 6398291 is about 2529.4843348003. The cubic root of 6398291 is about 185.6470258831.

The spelling of 6398291 in words is "six million, three hundred ninety-eight thousand, two hundred ninety-one".