6405797 has 2 divisors, whose sum is σ = 6405798. Its totient is φ = 6405796.

The previous prime is 6405767. The next prime is 6405811. The reversal of 6405797 is 7975046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6220036 + 185761 = 2494^2 + 431^2 .

It is a cyclic number.

It is not a de Polignac number, because 6405797 - 2⁶ = 6405733 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6405797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6405727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3202898 + 3202899.

It is an arithmetic number, because the mean of its divisors is an integer number (3202899).

Almost surely, 2^6405797 is an apocalyptic number.

It is an amenable number.

6405797 is a deficient number, since it is larger than the sum of its proper divisors (1).

6405797 is an equidigital number, since it uses as much as digits as its factorization.

6405797 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 6405797 is about 2530.9676015311. The cubic root of 6405797 is about 185.7195932831.

The spelling of 6405797 in words is "six million, four hundred five thousand, seven hundred ninety-seven".