82028291 has 2 divisors, whose sum is σ = 82028292. Its totient is φ = 82028290.

The previous prime is 82028267. The next prime is 82028293. The reversal of 82028291 is 19282028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82028291 - 2⁶ = 82028227 is a prime.

Together with 82028293, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (82028293) 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, 41014145 + 41014146.

It is an arithmetic number, because the mean of its divisors is an integer number (41014146).

Almost surely, 2^82028291 is an apocalyptic number.

82028291 is a deficient number, since it is larger than the sum of its proper divisors (1).

82028291 is an equidigital number, since it uses as much as digits as its factorization.

82028291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 82028291 is about 9056.9471125761. The cubic root of 82028291 is about 434.4981061351.

The spelling of 82028291 in words is "eighty-two million, twenty-eight thousand, two hundred ninety-one".