6815982 has 8 divisors (see below), whose sum is σ = 13631976. Its totient is φ = 2271992.

The previous prime is 6815971. The next prime is 6816011. The reversal of 6815982 is 2895186.

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

6815982 is an admirable number.

It is a super-3 number, since 3×6815982³ (a number of 21 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 6815982.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567993 + ... + 568004.

It is an arithmetic number, because the mean of its divisors is an integer number (1703997).

Almost surely, 2^6815982 is an apocalyptic number.

6815982 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.

6815982 is a wasteful number, since it uses less digits than its factorization.

6815982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1136002.

The product of its digits is 34560, while the sum is 39.

The square root of 6815982 is about 2610.7435722414. The cubic root of 6815982 is about 189.6019552399.

The spelling of 6815982 in words is "six million, eight hundred fifteen thousand, nine hundred eighty-two".