8397828211 has 4 divisors (see below), whose sum is σ = 8398061424. Its totient is φ = 8397595000.

The previous prime is 8397828209. The next prime is 8397828251. The reversal of 8397828211 is 1128287938.

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 8397828211 - 2¹ = 8397828209 is a prime.

It is a super-2 number, since 2×8397828211² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8397828251) 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, 49855 + ... + 138856.

It is an arithmetic number, because the mean of its divisors is an integer number (2099515356).

Almost surely, 2^8397828211 is an apocalyptic number.

8397828211 is a deficient number, since it is larger than the sum of its proper divisors (233213).

8397828211 is a wasteful number, since it uses less digits than its factorization.

8397828211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233212.

The product of its digits is 387072, while the sum is 49.

The square root of 8397828211 is about 91639.6650528580. The cubic root of 8397828211 is about 2032.6175081779.

The spelling of 8397828211 in words is "eight billion, three hundred ninety-seven million, eight hundred twenty-eight thousand, two hundred eleven".