8221828919 has 2 divisors, whose sum is σ = 8221828920. Its totient is φ = 8221828918.

The previous prime is 8221828913. The next prime is 8221828981. The reversal of 8221828919 is 9198281228.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 8221828919 - 2⁸ = 8221828663 is a prime.

It is a super-2 number, since 2×8221828919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8221828913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4110914459 + 4110914460.

It is an arithmetic number, because the mean of its divisors is an integer number (4110914460).

Almost surely, 2^8221828919 is an apocalyptic number.

8221828919 is a deficient number, since it is larger than the sum of its proper divisors (1).

8221828919 is an equidigital number, since it uses as much as digits as its factorization.

8221828919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 331776, while the sum is 50.

The square root of 8221828919 is about 90674.3013152018. The cubic root of 8221828919 is about 2018.3174662933.

The spelling of 8221828919 in words is "eight billion, two hundred twenty-one million, eight hundred twenty-eight thousand, nine hundred nineteen".