6489005 has 8 divisors (see below), whose sum is σ = 7844472. Its totient is φ = 5152768.

The previous prime is 6488987. The next prime is 6489083. The reversal of 6489005 is 5009846.

It can be written as a sum of positive squares in 4 ways, for example, as 2540836 + 3948169 = 1594^2 + 1987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6489005 - 2⁶ = 6488941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 4052 + ... + 5421.

It is an arithmetic number, because the mean of its divisors is an integer number (980559).

Almost surely, 2^6489005 is an apocalyptic number.

It is an amenable number.

6489005 is a deficient number, since it is larger than the sum of its proper divisors (1355467).

6489005 is a wasteful number, since it uses less digits than its factorization.

6489005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9615.

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 6489005 is about 2547.3525472537. The cubic root of 6489005 is about 186.5202703496.

The spelling of 6489005 in words is "six million, four hundred eighty-nine thousand, five".