82044643 has 2 divisors, whose sum is σ = 82044644. Its totient is φ = 82044642.

The previous prime is 82044629. The next prime is 82044647. The reversal of 82044643 is 34644028.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 82044643 - 2¹⁷ = 81913571 is a prime.

It is not a weakly prime, because it can be changed into another prime (82044647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41022321 + 41022322.

It is an arithmetic number, because the mean of its divisors is an integer number (41022322).

Almost surely, 2^82044643 is an apocalyptic number.

82044643 is a deficient number, since it is larger than the sum of its proper divisors (1).

82044643 is an equidigital number, since it uses as much as digits as its factorization.

82044643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 31.

The square root of 82044643 is about 9057.8498000353. The cubic root of 82044643 is about 434.5269760160.

The spelling of 82044643 in words is "eighty-two million, forty-four thousand, six hundred forty-three".