82644841 has 2 divisors, whose sum is σ = 82644842. Its totient is φ = 82644840.

The previous prime is 82644811. The next prime is 82644883. The reversal of 82644841 is 14844628.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 27825625 = 7404^2 + 5275^2 .

It is a cyclic number.

It is not a de Polignac number, because 82644841 - 2¹⁹ = 82120553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 82644841.

It is not a weakly prime, because it can be changed into another prime (82644811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41322420 + 41322421.

It is an arithmetic number, because the mean of its divisors is an integer number (41322421).

Almost surely, 2^82644841 is an apocalyptic number.

It is an amenable number.

82644841 is a deficient number, since it is larger than the sum of its proper divisors (1).

82644841 is an equidigital number, since it uses as much as digits as its factorization.

82644841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49152, while the sum is 37.

The square root of 82644841 is about 9090.9208004470. The cubic root of 82644841 is about 435.5839974047.

The spelling of 82644841 in words is "eighty-two million, six hundred forty-four thousand, eight hundred forty-one".