6389797 has 2 divisors, whose sum is σ = 6389798. Its totient is φ = 6389796.

The previous prime is 6389783. The next prime is 6389819. The reversal of 6389797 is 7979836.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5377761 + 1012036 = 2319^2 + 1006^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6389797 is a prime.

6389797 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 6389797.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6389717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3194898 + 3194899.

It is an arithmetic number, because the mean of its divisors is an integer number (3194899).

Almost surely, 2^6389797 is an apocalyptic number.

It is an amenable number.

6389797 is a deficient number, since it is larger than the sum of its proper divisors (1).

6389797 is an equidigital number, since it uses as much as digits as its factorization.

6389797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 571536, while the sum is 49.

The square root of 6389797 is about 2527.8047788546. The cubic root of 6389797 is about 185.5648380954.

The spelling of 6389797 in words is "six million, three hundred eighty-nine thousand, seven hundred ninety-seven".