82839613 has 2 divisors, whose sum is σ = 82839614. Its totient is φ = 82839612.

The previous prime is 82839611. The next prime is 82839667. The reversal of 82839613 is 31693828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82500889 + 338724 = 9083^2 + 582^2 .

It is a cyclic number.

It is not a de Polignac number, because 82839613 - 2¹ = 82839611 is a prime.

Together with 82839611, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (82839611) 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, 41419806 + 41419807.

It is an arithmetic number, because the mean of its divisors is an integer number (41419807).

Almost surely, 2^82839613 is an apocalyptic number.

It is an amenable number.

82839613 is a deficient number, since it is larger than the sum of its proper divisors (1).

82839613 is an equidigital number, since it uses as much as digits as its factorization.

82839613 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 40.

The square root of 82839613 is about 9101.6269424757. The cubic root of 82839613 is about 435.9259143121.

The spelling of 82839613 in words is "eighty-two million, eight hundred thirty-nine thousand, six hundred thirteen".