82840223 has 2 divisors, whose sum is σ = 82840224. Its totient is φ = 82840222.

The previous prime is 82840193. The next prime is 82840237. The reversal of 82840223 is 32204828.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82840223 - 2⁶ = 82840159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82840283) 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, 41420111 + 41420112.

It is an arithmetic number, because the mean of its divisors is an integer number (41420112).

Almost surely, 2^82840223 is an apocalyptic number.

82840223 is a deficient number, since it is larger than the sum of its proper divisors (1).

82840223 is an equidigital number, since it uses as much as digits as its factorization.

82840223 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 29.

The square root of 82840223 is about 9101.6604529064. The cubic root of 82840223 is about 435.9269843080.

The spelling of 82840223 in words is "eighty-two million, eight hundred forty thousand, two hundred twenty-three".