6489992 has 16 divisors (see below), whose sum is σ = 12336540. Its totient is φ = 3200256.

The previous prime is 6489991. The next prime is 6490007. The reversal of 6489992 is 2999846.

It can be written as a sum of positive squares in 2 ways, for example, as 5827396 + 662596 = 2414^2 + 814^2 .

It is not an unprimeable number, because it can be changed into a prime (6489991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4973 + ... + 6140.

Almost surely, 2^6489992 is an apocalyptic number.

It is an amenable number.

6489992 is a deficient number, since it is larger than the sum of its proper divisors (5846548).

6489992 is a wasteful number, since it uses less digits than its factorization.

6489992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11192 (or 11188 counting only the distinct ones).

The product of its digits is 279936, while the sum is 47.

The square root of 6489992 is about 2547.5462704336. The cubic root of 6489992 is about 186.5297266619.

The spelling of 6489992 in words is "six million, four hundred eighty-nine thousand, nine hundred ninety-two".