6983639 has 8 divisors (see below), whose sum is σ = 7724640. Its totient is φ = 6271776.

The previous prime is 6983629. The next prime is 6983657. The reversal of 6983639 is 9363896.

6983639 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 6983639 - 2¹² = 6979543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6983639.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6983609) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6779 + ... + 7740.

It is an arithmetic number, because the mean of its divisors is an integer number (965580).

Almost surely, 2^6983639 is an apocalyptic number.

6983639 is a deficient number, since it is larger than the sum of its proper divisors (741001).

6983639 is a wasteful number, since it uses less digits than its factorization.

6983639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14569.

The product of its digits is 209952, while the sum is 44.

The square root of 6983639 is about 2642.6575638928. The cubic root of 6983639 is about 191.1439664558.

The spelling of 6983639 in words is "six million, nine hundred eighty-three thousand, six hundred thirty-nine".