6490489 has 4 divisors (see below), whose sum is σ = 6497280. Its totient is φ = 6483700.

The previous prime is 6490487. The next prime is 6490507. The reversal of 6490489 is 9840946.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 9840946 = 2 ⋅4920473.

It is a cyclic number.

It is not a de Polignac number, because 6490489 - 2¹ = 6490487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6490483) 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 in 3 ways as a sum of consecutive naturals, for example, 1669 + ... + 3970.

It is an arithmetic number, because the mean of its divisors is an integer number (1624320).

Almost surely, 2^6490489 is an apocalyptic number.

It is an amenable number.

6490489 is a deficient number, since it is larger than the sum of its proper divisors (6791).

6490489 is a wasteful number, since it uses less digits than its factorization.

6490489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6790.

The product of its (nonzero) digits is 62208, while the sum is 40.

The square root of 6490489 is about 2547.6438134088. The cubic root of 6490489 is about 186.5344879882.

The spelling of 6490489 in words is "six million, four hundred ninety thousand, four hundred eighty-nine".