6389473 has 2 divisors, whose sum is σ = 6389474. Its totient is φ = 6389472.

The previous prime is 6389447. The next prime is 6389479. The reversal of 6389473 is 3749836.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6185169 + 204304 = 2487^2 + 452^2 .

It is a cyclic number.

It is not a de Polignac number, because 6389473 - 2¹⁷ = 6258401 is a prime.

It is not a weakly prime, because it can be changed into another prime (6389479) 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, 3194736 + 3194737.

It is an arithmetic number, because the mean of its divisors is an integer number (3194737).

Almost surely, 2^6389473 is an apocalyptic number.

It is an amenable number.

6389473 is a deficient number, since it is larger than the sum of its proper divisors (1).

6389473 is an equidigital number, since it uses as much as digits as its factorization.

6389473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 40.

The square root of 6389473 is about 2527.7406908146. The cubic root of 6389473 is about 185.5617016356.

The spelling of 6389473 in words is "six million, three hundred eighty-nine thousand, four hundred seventy-three".