82018823 has 2 divisors, whose sum is σ = 82018824. Its totient is φ = 82018822.

The previous prime is 82018813. The next prime is 82018837. The reversal of 82018823 is 32881028.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82018823 - 2⁸ = 82018567 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82018823.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82018813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41009411 + 41009412.

It is an arithmetic number, because the mean of its divisors is an integer number (41009412).

Almost surely, 2^82018823 is an apocalyptic number.

82018823 is a deficient number, since it is larger than the sum of its proper divisors (1).

82018823 is an equidigital number, since it uses as much as digits as its factorization.

82018823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6144, while the sum is 32.

The square root of 82018823 is about 9056.4244048079. The cubic root of 82018823 is about 434.4813883812.

The spelling of 82018823 in words is "eighty-two million, eighteen thousand, eight hundred twenty-three".