8211199 has 4 divisors (see below), whose sum is σ = 8292600. Its totient is φ = 8129800.

The previous prime is 8211197. The next prime is 8211227. The reversal of 8211199 is 9911128.

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 8211199 - 2¹ = 8211197 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 8211199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8211191) 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, 40549 + ... + 40750.

It is an arithmetic number, because the mean of its divisors is an integer number (2073150).

Almost surely, 2^8211199 is an apocalyptic number.

8211199 is a deficient number, since it is larger than the sum of its proper divisors (81401).

8211199 is a wasteful number, since it uses less digits than its factorization.

8211199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81400.

The product of its digits is 1296, while the sum is 31.

The square root of 8211199 is about 2865.5189756831. The cubic root of 8211199 is about 201.7447270454.

It can be divided in two parts, 821119 and 9, that added together give a palindrome (821128).

The spelling of 8211199 in words is "eight million, two hundred eleven thousand, one hundred ninety-nine".