6487983 has 6 divisors (see below), whose sum is σ = 9371544. Its totient is φ = 4325316.

The previous prime is 6487979. The next prime is 6487991. The reversal of 6487983 is 3897846.

It is a happy number.

It is not a de Polignac number, because 6487983 - 2² = 6487979 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6487903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 360435 + ... + 360452.

It is an arithmetic number, because the mean of its divisors is an integer number (1561924).

Almost surely, 2^6487983 is an apocalyptic number.

6487983 is a deficient number, since it is larger than the sum of its proper divisors (2883561).

6487983 is a wasteful number, since it uses less digits than its factorization.

6487983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 720893 (or 720890 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The square root of 6487983 is about 2547.1519389310. The cubic root of 6487983 is about 186.5104776965.

The spelling of 6487983 in words is "six million, four hundred eighty-seven thousand, nine hundred eighty-three".