82215323 has 2 divisors, whose sum is σ = 82215324. Its totient is φ = 82215322.

The previous prime is 82215311. The next prime is 82215347. The reversal of 82215323 is 32351228.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-82215323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 82215292 and 82215301.

It is not a weakly prime, because it can be changed into another prime (82217323) 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, 41107661 + 41107662.

It is an arithmetic number, because the mean of its divisors is an integer number (41107662).

Almost surely, 2^82215323 is an apocalyptic number.

82215323 is a deficient number, since it is larger than the sum of its proper divisors (1).

82215323 is an equidigital number, since it uses as much as digits as its factorization.

82215323 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 82215323 is about 9067.2665671634. The cubic root of 82215323 is about 434.8280872632.

The spelling of 82215323 in words is "eighty-two million, two hundred fifteen thousand, three hundred twenty-three".