82808839 has 2 divisors, whose sum is σ = 82808840. Its totient is φ = 82808838.

The previous prime is 82808743. The next prime is 82808863. The reversal of 82808839 is 93880828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82808839 - 2⁷ = 82808711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82808879) 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, 41404419 + 41404420.

It is an arithmetic number, because the mean of its divisors is an integer number (41404420).

Almost surely, 2^82808839 is an apocalyptic number.

82808839 is a deficient number, since it is larger than the sum of its proper divisors (1).

82808839 is an equidigital number, since it uses as much as digits as its factorization.

82808839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 221184, while the sum is 46.

The square root of 82808839 is about 9099.9362085676. The cubic root of 82808839 is about 435.8719270744.

The spelling of 82808839 in words is "eighty-two million, eight hundred eight thousand, eight hundred thirty-nine".