82126393 has 2 divisors, whose sum is σ = 82126394. Its totient is φ = 82126392.

The previous prime is 82126391. The next prime is 82126423. The reversal of 82126393 is 39362128.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42146064 + 39980329 = 6492^2 + 6323^2 .

It is a cyclic number.

It is not a de Polignac number, because 82126393 - 2¹ = 82126391 is a prime.

Together with 82126391, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (82126391) 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, 41063196 + 41063197.

It is an arithmetic number, because the mean of its divisors is an integer number (41063197).

Almost surely, 2^82126393 is an apocalyptic number.

It is an amenable number.

82126393 is a deficient number, since it is larger than the sum of its proper divisors (1).

82126393 is an equidigital number, since it uses as much as digits as its factorization.

82126393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15552, while the sum is 34.

The square root of 82126393 is about 9062.3613368702. The cubic root of 82126393 is about 434.6712502679.

The spelling of 82126393 in words is "eighty-two million, one hundred twenty-six thousand, three hundred ninety-three".