6540489 has 12 divisors (see below), whose sum is σ = 9568000. Its totient is φ = 4304664.

The previous prime is 6540467. The next prime is 6540493. The reversal of 6540489 is 9840456.

6540489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-6540489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6540409) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3889 + ... + 5310.

Almost surely, 2^6540489 is an apocalyptic number.

It is an amenable number.

6540489 is a deficient number, since it is larger than the sum of its proper divisors (3027511).

6540489 is a wasteful number, since it uses less digits than its factorization.

6540489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9284 (or 9281 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 6540489 is about 2557.4379757875. The cubic root of 6540489 is about 187.0122576731.

The spelling of 6540489 in words is "six million, five hundred forty thousand, four hundred eighty-nine".