6899983 has 4 divisors (see below), whose sum is σ = 7263160. Its totient is φ = 6536808.

The previous prime is 6899969. The next prime is 6899989. The reversal of 6899983 is 3899986.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6899983 - 2⁵ = 6899951 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 6899983.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6899989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181560 + ... + 181597.

It is an arithmetic number, because the mean of its divisors is an integer number (1815790).

Almost surely, 2^6899983 is an apocalyptic number.

6899983 is a deficient number, since it is larger than the sum of its proper divisors (363177).

6899983 is a wasteful number, since it uses less digits than its factorization.

6899983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363176.

The product of its digits is 839808, while the sum is 52.

The square root of 6899983 is about 2626.7818714160. The cubic root of 6899983 is about 190.3776698473.

The spelling of 6899983 in words is "six million, eight hundred ninety-nine thousand, nine hundred eighty-three".