6820099 has 16 divisors (see below), whose sum is σ = 8235360. Its totient is φ = 5564160.

The previous prime is 6820097. The next prime is 6820103. The reversal of 6820099 is 9900286.

It is a cyclic number.

It is not a de Polignac number, because 6820099 - 2¹ = 6820097 is a prime.

It is a Duffinian number.

6820099 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (6820097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4647 + ... + 5935.

It is an arithmetic number, because the mean of its divisors is an integer number (514710).

Almost surely, 2^6820099 is an apocalyptic number.

6820099 is a deficient number, since it is larger than the sum of its proper divisors (1415261).

6820099 is a wasteful number, since it uses less digits than its factorization.

6820099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1350.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 6820099 is about 2611.5319259010. The cubic root of 6820099 is about 189.6401221119.

The spelling of 6820099 in words is "six million, eight hundred twenty thousand, ninety-nine".