6489913 has 2 divisors, whose sum is σ = 6489914. Its totient is φ = 6489912.

The previous prime is 6489893. The next prime is 6489949. The reversal of 6489913 is 3199846.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6487209 + 2704 = 2547^2 + 52^2 .

It is a cyclic number.

It is not a de Polignac number, because 6489913 - 2⁹ = 6489401 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6489953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3244956 + 3244957.

It is an arithmetic number, because the mean of its divisors is an integer number (3244957).

Almost surely, 2^6489913 is an apocalyptic number.

It is an amenable number.

6489913 is a deficient number, since it is larger than the sum of its proper divisors (1).

6489913 is an equidigital number, since it uses as much as digits as its factorization.

6489913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 46656, while the sum is 40.

The square root of 6489913 is about 2547.5307652706. The cubic root of 6489913 is about 186.5289698090.

The spelling of 6489913 in words is "six million, four hundred eighty-nine thousand, nine hundred thirteen".