6491983 has 8 divisors (see below), whose sum is σ = 6754880. Its totient is φ = 6233760.

The previous prime is 6491971. The next prime is 6491993. The reversal of 6491983 is 3891946.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6491983 - 2⁵ = 6491951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6491923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1813 + ... + 4033.

It is an arithmetic number, because the mean of its divisors is an integer number (844360).

Almost surely, 2^6491983 is an apocalyptic number.

6491983 is a deficient number, since it is larger than the sum of its proper divisors (262897).

6491983 is a wasteful number, since it uses less digits than its factorization.

6491983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2337.

The product of its digits is 46656, while the sum is 40.

The square root of 6491983 is about 2547.9370086405. The cubic root of 6491983 is about 186.5487992440.

The spelling of 6491983 in words is "six million, four hundred ninety-one thousand, nine hundred eighty-three".