6489657 has 24 divisors (see below), whose sum is σ = 9906624. Its totient is φ = 4085664.

The previous prime is 6489653. The next prime is 6489667. The reversal of 6489657 is 7569846.

It is not a de Polignac number, because 6489657 - 2² = 6489653 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6489653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22003 + ... + 22295.

It is an arithmetic number, because the mean of its divisors is an integer number (412776).

Almost surely, 2^6489657 is an apocalyptic number.

It is an amenable number.

6489657 is a deficient number, since it is larger than the sum of its proper divisors (3416967).

6489657 is a wasteful number, since it uses less digits than its factorization.

6489657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 426 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 6489657 is about 2547.4805200433. The cubic root of 6489657 is about 186.5265171801.

The spelling of 6489657 in words is "six million, four hundred eighty-nine thousand, six hundred fifty-seven".