82658393 has 2 divisors, whose sum is σ = 82658394. Its totient is φ = 82658392.

The previous prime is 82658371. The next prime is 82658423. The reversal of 82658393 is 39385628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47706649 + 34951744 = 6907^2 + 5912^2 .

It is a cyclic number.

It is not a de Polignac number, because 82658393 - 2⁸ = 82658137 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (82658593) 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, 41329196 + 41329197.

It is an arithmetic number, because the mean of its divisors is an integer number (41329197).

Almost surely, 2^82658393 is an apocalyptic number.

It is an amenable number.

82658393 is a deficient number, since it is larger than the sum of its proper divisors (1).

82658393 is an equidigital number, since it uses as much as digits as its factorization.

82658393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 311040, while the sum is 44.

The square root of 82658393 is about 9091.6661289337. Note that the first 3 decimals coincide. The cubic root of 82658393 is about 435.6078049472.

The spelling of 82658393 in words is "eighty-two million, six hundred fifty-eight thousand, three hundred ninety-three".