6563982 has 8 divisors (see below), whose sum is σ = 13127976. Its totient is φ = 2187992.

The previous prime is 6563981. The next prime is 6563983. The reversal of 6563982 is 2893656.

It is an interprime number because it is at equal distance from previous prime (6563981) and next prime (6563983).

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

6563982 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6563982.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6563981) 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, 546993 + ... + 547004.

It is an arithmetic number, because the mean of its divisors is an integer number (1640997).

Almost surely, 2^6563982 is an apocalyptic number.

6563982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6563982 is a wasteful number, since it uses less digits than its factorization.

6563982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094002.

The product of its digits is 77760, while the sum is 39.

The square root of 6563982 is about 2562.0269319428. The cubic root of 6563982 is about 187.2359019643.

The spelling of 6563982 in words is "six million, five hundred sixty-three thousand, nine hundred eighty-two".