82428211 has 2 divisors, whose sum is σ = 82428212. Its totient is φ = 82428210.

The previous prime is 82428187. The next prime is 82428239. The reversal of 82428211 is 11282428.

It is an a-pointer prime, because the next prime (82428239) can be obtained adding 82428211 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82428211 - 2¹⁹ = 81903923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82428211.

It is not a weakly prime, because it can be changed into another prime (82408211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41214105 + 41214106.

It is an arithmetic number, because the mean of its divisors is an integer number (41214106).

Almost surely, 2^82428211 is an apocalyptic number.

82428211 is a deficient number, since it is larger than the sum of its proper divisors (1).

82428211 is an equidigital number, since it uses as much as digits as its factorization.

82428211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 28.

The square root of 82428211 is about 9078.9983478355. The cubic root of 82428211 is about 435.2030777693.

The spelling of 82428211 in words is "eighty-two million, four hundred twenty-eight thousand, two hundred eleven".