6397903 has 2 divisors, whose sum is σ = 6397904. Its totient is φ = 6397902.

The previous prime is 6397891. The next prime is 6397921. The reversal of 6397903 is 3097936.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6397903 - 2⁵ = 6397871 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6397003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3198951 + 3198952.

It is an arithmetic number, because the mean of its divisors is an integer number (3198952).

Almost surely, 2^6397903 is an apocalyptic number.

6397903 is a deficient number, since it is larger than the sum of its proper divisors (1).

6397903 is an equidigital number, since it uses as much as digits as its factorization.

6397903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30618, while the sum is 37.

The square root of 6397903 is about 2529.4076381635. The cubic root of 6397903 is about 185.6432731882.

The spelling of 6397903 in words is "six million, three hundred ninety-seven thousand, nine hundred three".