82399243 has 2 divisors, whose sum is σ = 82399244. Its totient is φ = 82399242.

The previous prime is 82399241. The next prime is 82399277. The reversal of 82399243 is 34299328.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 82399243 - 2¹ = 82399241 is a prime.

Together with 82399241, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 82399196 and 82399205.

It is not a weakly prime, because it can be changed into another prime (82399241) 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, 41199621 + 41199622.

It is an arithmetic number, because the mean of its divisors is an integer number (41199622).

Almost surely, 2^82399243 is an apocalyptic number.

82399243 is a deficient number, since it is larger than the sum of its proper divisors (1).

82399243 is an equidigital number, since it uses as much as digits as its factorization.

82399243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 93312, while the sum is 40.

The square root of 82399243 is about 9077.4028774755. The cubic root of 82399243 is about 435.1520902100.

The spelling of 82399243 in words is "eighty-two million, three hundred ninety-nine thousand, two hundred forty-three".