6491168 has 24 divisors (see below), whose sum is σ = 12903660. Its totient is φ = 3214080.

The previous prime is 6491167. The next prime is 6491189. The reversal of 6491168 is 8611946.

It can be written as a sum of positive squares in 2 ways, for example, as 6012304 + 478864 = 2452^2 + 692^2 .

It is not an unprimeable number, because it can be changed into a prime (6491167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2558 + ... + 4418.

Almost surely, 2^6491168 is an apocalyptic number.

It is an amenable number.

6491168 is a deficient number, since it is larger than the sum of its proper divisors (6412492).

6491168 is a wasteful number, since it uses less digits than its factorization.

6491168 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1980 (or 1972 counting only the distinct ones).

The product of its digits is 10368, while the sum is 35.

The square root of 6491168 is about 2547.7770703105. Note that the first 3 decimals coincide. The cubic root of 6491168 is about 186.5409925058.

The spelling of 6491168 in words is "six million, four hundred ninety-one thousand, one hundred sixty-eight".