6811199 has 4 divisors (see below), whose sum is σ = 6922920. Its totient is φ = 6699480.

The previous prime is 6811141. The next prime is 6811213. The reversal of 6811199 is 9911186.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9911186 = 2 ⋅4955593.

It is a cyclic number.

It is not a de Polignac number, because 6811199 - 2⁸ = 6810943 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6811109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55769 + ... + 55890.

It is an arithmetic number, because the mean of its divisors is an integer number (1730730).

Almost surely, 2^6811199 is an apocalyptic number.

6811199 is a deficient number, since it is larger than the sum of its proper divisors (111721).

6811199 is a wasteful number, since it uses less digits than its factorization.

6811199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111720.

The product of its digits is 3888, while the sum is 35.

The square root of 6811199 is about 2609.8273889282. The cubic root of 6811199 is about 189.5575948742.

The spelling of 6811199 in words is "six million, eight hundred eleven thousand, one hundred ninety-nine".